SMS API

Basic information

API URL

https://sens.apigw.ntruss.com/sms/v2

Go to SENS SMS API Swagger

API Header

Category	Mandatory	Description
Content-Type	Mandatory	Specify the request body content type as application/json (POST).
x-ncp-apigw-timestamp	Mandatory	- This is the number of milliseconds that have elapsed since January 1, 1970 00:00:00 UTC. - Request is considered invalid if the timestamp differs from the current time by more than 5 minutes.
x-ncp-iam-access-key	Mandatory	Access key ID issued by the portal or Sub Account
x-ncp-apigw-signature-v2	Mandatory	- Signature that encrypts the body of the example above with secret key mapped to the access key ID - Use the HMAC-SHA256 encryption algorithm.

NAVER Cloud Platform authentication key and signature creation guide

Message

Send message

This sends SMS/LMS/MMS messages.

Request URL

POST https://sens.apigw.ntruss.com/sms/v2/services/{serviceId}/messages

Content-Type: application/json; charset=utf-8
x-ncp-apigw-timestamp: {Timestamp}
x-ncp-iam-access-key: {Sub Account Access Key}
x-ncp-apigw-signature-v2: {API Gateway Signature}

Path Variables

Category	Mandatory	Type	Description	Remarks
serviceId	Mandatory	String	Service ID	Service ID issued when registering the project

Headers

Go to API header

Request body

{
    "type":"(SMS | LMS | MMS)",
    "contentType":"(COMM | AD)",
    "countryCode":"string",
    "from":"string",
    "subject":"string",
    "content":"string",
    "messages":[
        {
            "to":"string",
            "subject":"string",
            "content":"string"
        }
    ],
    "files":[
        {
             "fileId": "string"
        }
    ],
    "reserveTime": "yyyy-MM-dd HH:mm",
    "reserveTimeZone": "string"
}

Category	Mandatory	Type	Description	Remarks
type	Mandatory	String	SMS Type	SMS, LMS, MMS (lowercase)
contentType	Optional	String	Message type	- COMM: Regular message - AD: Ad message - Default: COMM
countryCode	Optional	String	Country code	- Sending is only available to countries that are supported by SENS - Default: 82 - List of countries where international SMS can be sent
from	Mandatory	String	Caller ID	Only the pre-registered caller ID can be used
subject	Optional	String	Title of default message	Only available in LMS and MMS - LMS, MMS: up to 40 bytes
content	Mandatory	String	Content of default message	- SMS: up to 90 bytes - LMS, MMS: Up to 2000 bytes
messages	Mandatory	Object	Message information	- See items below (messages.XXX). - Up to 100
messages.to	Mandatory	String	Called number	Only numbers can be entered, without the hyphen (-).
messages.subject	Optional	String	Title of individual message	Only available in LMS and MMS - LMS, MMS: up to 40 bytes
messages.content	Optional	String	Content of individual message	- SMS: up to 90 bytes - LMS, MMS: Up to 2000 bytes
files.fileId	Optional	String	File ID	Only available in MMS See Upload file.
reserveTime	Optional	String	Reserved date and time	Reserved date and time for message delivery (yyyy-MM-dd HH:mm)
reserveTimeZone	Optional	String	Time zone of reserved date and time	- Time zone of reserved date and time (default: Asia/Seoul) - List of supported time zones - Use the TZ database name value.

Caution

If the maximum supported size is exceeded, some content will be truncated and sent.
Message (subject, content) encoding is based on EUC-KR and sending fails if unsupported emoji characters are included.

Note

If the subject and content are not defined in messages, it will be sent with the default subject and content.
The subject and content in messages have a higher priority than the default subject and content.
When there is no file to attach in an MMS type, it will be sent as an LMS.

Response body

{
    "requestId":"string",
    "requestTime":"string",
    "statusCode":"string",
    "statusName":"string"
}

Category	Mandatory	Type	Description	Remarks
requestId	Mandatory	String	Request ID
requestTime	Mandatory	DateTime	Request time	yyyy-MM-dd'T'HH:mm:ss.SSS
statusCode	Mandatory	String	Request status code	- 202: Success - Other: failure - It follows the HTTP status specification.
statusName	Mandatory	String	Request status name	- success: success - fail: failure

Response status

HTTP Status	Desc
202	Accept (Successfully requested)
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
429	Too Many Requests
500	Internal Server Error

Upload files

Upload a file for sending an MMS.

Request URL

POST https://sens.apigw.ntruss.com/sms/v2/services/{serviceId}/files

Content-Type: application/json; charset=utf-8
x-ncp-apigw-timestamp: {Timestamp}
x-ncp-iam-access-key: {Sub Account Access Key}
x-ncp-apigw-signature-v2: {API Gateway Signature}

Path Variables

Category	Mandatory	Type	Description	Remarks
serviceId	Mandatory	String	Service ID	Service ID issued when registering the project

Headers

Go to API Header

Request body

{
    "fileName":"string",
    "fileBody":"string"
}

Category	Mandatory	Type	Description	Remarks
fileName	Mandatory	String	File name	- File name with .jpg and .jpeg extensions - Up to 40 characters
fileBody	Mandatory	String	File body	- Value that encoded .jpg and .jpeg images in Base64 - Up to 300 KB based on original file - Resolution up to 1500 * 1440

Note

If a file with the same name and file size as the file you are uploading already exists, the file is recognized as the same file and reused. (Retained for 6 days)

Response body

{
    "fileId":"string",
    "createTime":"string",
    "expireTime":"string"
}

Category	Mandatory	Type	Description	Remarks
fileId	Mandatory	String	File ID	Use when sending MMS messages
createTime	Mandatory	DateTime	File upload time
expireTime	Mandatory	DateTime	File expiration time

Response status

HTTP Status	Desc
200	OK (Upload successful)
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
429	Too Many Requests
500	Internal Server Error

Get message delivery request

Get the message delivery request.

Request URL

GET https://sens.apigw.ntruss.com/sms/v2/services/{serviceId}/messages

x-ncp-apigw-timestamp: {Timestamp}
x-ncp-iam-access-key: {Sub Account Access Key}
x-ncp-apigw-signature-v2: {API Gateway Signature}

Path Variables

Category	Mandatory	Type	Description	Remarks
serviceId	Mandatory	String	Service ID	Service ID issued when registering the project

Parameters

Category	Mandatory	Type	Description	Remarks
requestId	Mandatory	String	Request ID	Delivery request ID
requestStartTime	Mandatory	String	Query start time	yyyy-MM-dd HH:mm:ss
requestEndTime	Mandatory	String	Query end time	yyyy-MM-dd HH:mm:ss
completeStartTime	Mandatory	String	Delivery completion start time	yyyy-MM-dd HH:mm:ss
completeEndTime	Mandatory	String	Delivery completion end time	yyyy-MM-dd HH:mm:ss
messageId	Optional	String	Message ID
type	Optional	String	Message type	SMS, LMS, MMS
contentType	Optional	String	Content type	- COMM: general message - AD: advertising message
countryCode	Optional	String	Country Code
status	Optional	String	Delivery request status	- READY: ready - PROCESSING: being processed - COMPLETED: processing completed
from	Optional	String	Message sender number	Number excluding hyphens (-)
to	Optional	String	Message recipient number	Number excluding hyphens (-)
statusName	Optional	String	Device receipt status	- SUCCESS: success - FAIL: failure
nextToken	Optional	String	Next page token	See the content of the following note.
pageSize	Optional	Integer	Page size	Default: 20, Max: 100 When querying including requestId, default: 1000

Note

You can only see the history of messages sent within the last 90 days.
One of the following must be specified: requestId, requestStartTime + requestEndTime, or completeStartTime + completeEndTime.
requestStartTime + requestEndTime and completeStartTime + completeEndTime can't be used at the same time.
The query range of requestStartTime to requestEndTime is limited to a maximum of 30 days.
The query range of completeStartTime to completeEndTime is limited to a maximum of 24 hours.
nextToken
- It is valid only if a nextToken response was received in the previous request, indicating that the results of the next page can be requested. If there are additional results, you can set the nextToken value from the previous response to this parameter to query the results for the next page.

Headers

Go to API header

Request body

None

Response body

{
    "statusCode": "string",
    "statusName": "string",
    "messages": [
        {
            "requestId": "string",
            "messageId": "string",
            "requestTime": "string",
            "contentType": "string",
            "type": "string",
            "countryCode": "string",
            "from": "string",
            "to": "string",
            "completeTime": "string",
            "telcoCode": "string",
            "status": "string",
            "statusCode": "string",
            "statusName": "string",
            "statusMessage": "string"
        }
    ],
    "pageSize": "integer",
    "nextToken": "string",
    "itemCount": "integer",
    "hasMore": "boolean"
}

Category	Mandatory	Type	Description	Remarks
statusCode	Mandatory	String	Status of sending a message to the messaging server	- 202: Success - Other: failure - It follows the HTTP status specification.
statusName	Mandatory	String	Name of the status of sending a message to the messaging server	- success: success - reserved: reserved - fail: failure
messages.requestId	Mandatory	String	Message request ID
messages.messageId	Mandatory	String	Message ID
messages.requestTime	Mandatory	String	Delivery request time	yyyy-MM-dd HH:mm:ss
messages.contentType	Mandatory	String	Message type	- COMM: general message - AD: advertising message
messages.countryCode	Mandatory	String	Country code
messages.from	Mandatory	String	Caller ID
messages.to	Mandatory	String	Called number
messages.status	Mandatory	String	Delivery request status	- READY: ready - PROCESSING: being processed - COMPLETED: processing completed
messages.statusCode	Optional	String	Code of device received status result	- 0: Success - Other: failure (See the Error code table.)
messages.statusName	Optional	String	Name of device received status result	- success: success - fail: failure
messages.statusMessage	Optional	String	Message of device received status result
messages.completeTime	Optional	String	Delivery completion time	yyyy-MM-dd HH:mm:ss
messages.telcoCode	Optional	String	Network operator code
pageSize	Mandatory	Integer	Page size
nextToken	Optional	String	Next page token	See the content of the following note.
itemCount	Mandatory	Integer	Number of messages in the pages retrieved
hasMore	Mandatory	Boolean	It indicates whether there is a next page.

Note

The following fields corresponding to the received results will not be displayed until the request status is completed (status: COMPLETED).

statusCode
statusName
statusMessage
completeTime
telcoCode

If the status name of the request to send to the messaging server is reserved, the messages fields are not retrieved.

nextToken
- The nextToken is included in the response only if the next page of the queried result exists. You can set the value of nextToken to the Get request API parameter to query the next page of results.

Response status

HTTP Status	Desc
200	OK (Successfully requested)
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
500	Internal Server Error

Get message delivery result

Get the message delivery result.

Request URL

GET https://sens.apigw.ntruss.com/sms/v2/services/{serviceId}/messages/{messageId}

x-ncp-apigw-timestamp: {Timestamp}
x-ncp-iam-access-key: {Sub Account Access Key}
x-ncp-apigw-signature-v2: {API Gateway Signature}

Path Variables

Category	Mandatory	Type	Description	Remarks
serviceId	Mandatory	String	Service ID	Service ID issued when registering the project
messageId	Mandatory	String	Message ID	Message identifier that is returned when searching the message delivery requests

Headers

Go to API header

Request body

None

Response body

{
    "statusCode":"string",
    "statusName":"string",
    "messages":[
        {
            "requestTime":"string",
            "contentType":"string",
            "content":"string",
            "countryCode":"string",
            "from":"string",
            "to":"string",
            "status":"string",
            "statusCode":"string",
            "statusMessage":"string",
            "statusName":"string",
            "completeTime":"string",
            "telcoCode":"string",
            "files":[
                {
                    "name":"string",
                    "fileId":"string"
                }
            ]
        }
    ]
}

Category	Mandatory	Type	Description	Remarks
statusCode	Mandatory	String	Status of sending a message to the messaging server	- 200: Success - Other: failure
statusName	Mandatory	String	Name of the status of sending a message to the messaging server	- success: success - fail: failure
messages.requestTime	Mandatory	DateTime	Request time	yyyy-MM-dd HH:mm:ss
messages.contentType	Mandatory	String	Message type	- COMM: general message - AD: advertising message
messages.content	Mandatory	String	Message content	The content that was requested to be sent is retrieved as is, but the actual sending is done according to the length limit for each type.
messages.countryCode	Mandatory	String	Country code
messages.from	Mandatory	String	Caller ID
messages.to	Mandatory	String	Called number
messages.status	Mandatory	String	Status of sending process in the messaging server	- READY: ready - PROCESSING: being processed - COMPLETED: processing completed
messages.statusCode	Mandatory	String	Code of device received status result	- 0: Success - Other: failure (See the Error code table.)
messages.statusName	Mandatory	String	Name of device received status result	- success: success - fail: failure
messages.statusMessage	Mandatory	String	Message of device received status result
messages.completeTime	Mandatory	DateTime	Delivery completion time	yyyy-MM-dd HH:mm:ss
messages.telcoCode	Mandatory	String	Network operator code
files.name	Optional	String	Name of attached file	Searchable only in MMS
files.fileId	Optional	String	Attached file ID	Searchable only in MMS

Note

You can only see the history of message deliveries sent within the last 90 days.

Response status

HTTP Status	Desc
200	OK (Successfully requested)
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
500	Internal Server Error

Reserved message

Get reserved message status

Get the reservation status of message delivery.

GET https://sens.apigw.ntruss.com/sms/v2/services/{serviceId}/reservations/{reserveId}/reserve-status

x-ncp-apigw-timestamp: {Timestamp}
x-ncp-iam-access-key: {Sub Account Access Key}
x-ncp-apigw-signature-v2: {API Gateway Signature}

Path Variables

Category	Mandatory	Type	Description	Remarks
serviceId	Mandatory	String	Service ID	Service ID issued when registering the project
reserveId	Mandatory	String	Reserved message ID	Message identifier that is returned when searching the reserved delivery requests (requestId)

Headers

Go to API header

Request body

None

Response body

{
  "reserveId": "string",
  "reserveTimeZone": "string",
  "reserveTime": "string",
  "reserveStatus": "string"
}

Category	Mandatory	Type	Description	Remarks
reserveId	Mandatory	String	Reserved message ID	Message identifier that is returned when searching the reserved delivery requests (requestId)
reserveTime	Mandatory	String	Reserved date and time	Reserved date and time for message delivery (yyyy-MM-dd HH:mm)
reserveTimeZone	Mandatory	String	Time zone of reserved date and time	- Time zone of reserved date and time (default: Asia/Seoul) - List of supported time zones - Use the TZ database name value.
reserveStatus	Mandatory	String	Reservation status	- READY: pending delivery - PROCESSING: delivery being requested - CANCELED: delivery canceled - FAIL: delivery request failure - DONE: delivery request successful - STALE: delivery request failure (timeout)

Response status

HTTP Status	Desc
200	OK (search completed)
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
500	Internal Server Error

Cancel reserved message

Cancel the reserved message delivery.

DELETE https://sens.apigw.ntruss.com/sms/v2/services/{serviceId}/reservations/{reserveId}

x-ncp-apigw-timestamp: {Timestamp}
x-ncp-iam-access-key: {Sub Account Access Key}
x-ncp-apigw-signature-v2: {API Gateway Signature}

Path Variables

Category	Mandatory	Type	Description	Remarks
serviceId	Mandatory	String	Service ID	Service ID issued when registering the project
reserveId	Mandatory	String	Reserved message ID	Message identifier that is returned when searching the reserved delivery requests (requestId)

Headers

Go to API header

Request body

None

Response body

None

Response status

HTTP Status	Desc
204	No Content (deletion completed)
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
500	Internal Server Error

080 block call number

Get blocked call number

Get the blocked call numbers.

Request URL

GET https://sens.apigw.ntruss.com/sms/v2/services/{serviceId}/unsubscribes

Content-Type: application/json; charset=utf-8
x-ncp-apigw-timestamp: {Timestamp}
x-ncp-iam-access-key: {Sub Account Access Key}
x-ncp-apigw-signature-v2: {API Gateway Signature}

Path Variables

Category	Mandatory	Type	Description	Remarks
serviceId	Mandatory	String	Service ID	Service ID issued when registering the project

Parameters

Category	Mandatory	Type	Description	Remarks
clientTelNo	Optional	String	Blocked call number	Blocked call numbers registered in 080 service number
pageSize	Optional	Integer	Page size	- Default: 100 - Only numbers between 0 and 100 can be entered.
pageIndex	Optional	Integer	Page index	Default: 0
startTime	Optional	Integer	Search start time	- Standard of call block registration time - Default: all
endTime	Optional	Integer	Search end time	- Standard of call block registration time - Default: all

Headers

Go to API header

Request body

None

Response body

[
    {
     "clientTelNo": "string",
     "registerTime": "string",
     "registerType": "char"
    }
]

Category	Mandatory	Type	Description	Remarks
clientTelNo	Mandatory	String	Blocked call number
registerTime	Mandatory	String	Registered time	foramt: LocalDateTime
registerType	Mandatory	Char	Registering method	- M (manual): manual registration - C (call): phone registration

Response status

HTTP Status	Desc
200	OK
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
429	Too Many Requests
500	Internal Server Error

Register blocked call number

This registers the numbers to be blocked.

Request URL

POST https://sens.apigw.ntruss.com/sms/v2/services/{serviceId}/unsubscribes

Content-Type: application/json; charset=utf-8
x-ncp-apigw-timestamp: {Timestamp}
x-ncp-iam-access-key: {Sub Account Access Key}
x-ncp-apigw-signature-v2: {API Gateway Signature}

Path Variables

Category	Mandatory	Type	Description	Remarks
serviceId	Mandatory	String	Service ID	Service ID issued when registering the project

Parameters

None

Headers

Go to API header

Request body

[
    {
        "clientTelNo":"string"
    }
]

Category	Mandatory	Type	Description	Remarks
clientTelNo	Mandatory	String	Blocked call number	Up to 1,000 requests can be made at a time (list).

Response body

[
    {
        "clientTelNo": "string",
        "registerTime": "string",
        "registerType": "char"
    }
]

Category	Mandatory	Type	Description	Remarks
clientTelNo	Mandatory	String	Blocked call number
registerTime	Mandatory	String	Registered time	foramt: LocalDateTime
registerType	Mandatory	Char	Registering method	- M (manual): manual registration - C (call): phone registration

Response status

HTTP Status	Desc
200	OK
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
429	Too Many Requests
500	Internal Server Error

Delete blocked call number

This deletes the blocked call numbers.

Request URL

DELETE https://sens.apigw.ntruss.com/sms/v2/services/{serviceId}/unsubscribes

Content-Type: application/json; charset=utf-8
x-ncp-apigw-timestamp: {Timestamp}
x-ncp-iam-access-key: {Sub Account Access Key}
x-ncp-apigw-signature-v2: {API Gateway Signature}

Path Variables

Category	Mandatory	Type	Description	Remarks
serviceId	Mandatory	String	Service ID	Service ID issued when registering the project

Parameters

None

Headers

Go to API header

Request body

[
    {
        "clientTelNo":"string"
    }
]

Category	Mandatory	Type	Description	Remarks
clientTelNo	Mandatory	String	Blocked call number	Up to 1,000 requests can be made at a time (list).

Response body

None

Response status

HTTP Status	Desc
204	No Content (Successfully deleted)
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
429	Too Many Requests
500	Internal Server Error

Message sending sample

SMS message

Regular message

{
    "type":"SMS",
    "contentType":"COMM",
    "countryCode":"82",
    "from":"01012345678",
    "content":"Content",
    "messages":[
        {
            "to":"01012345678",
            "content":"Content sent only to the number separately from the above content (optional)"
        }
    ]
}

Reserved message

{
    "reserveTime":"2019-07-25 17:09",
    "type":"SMS",
    "contentType":"COMM",
    "countryCode":"82",
    "from":"01012345678",
    "content":"Content",
    "messages":[
        {
            "to":"01012345678",
            "content":"Content sent only to the number separately from the above content (optional)"
        }
    ]
}

Ad message

{
    "type":"SMS",
    "contentType":"AD",
    "countryCode":"82",
    "from":"01012345678",
    "content":"(Ad) company name content [Free Call Block]08012345678",
    "messages":[
        {
            "to":"01012345678",
            "content":"(Ad) company name content sent only to the number separately from the content above (optional)[Free Call Block]08012345678"
        }
    ]
}

LMS message

Regular message

{
    "type":"LMS",
    "contentType":"COMM",
    "from":"01012345678",
    "subject":"Subject",
    "content":"Content",
    "messages":[
        {
            "to":"01012345678",
            "subject":"Title sent only to the number separately from the above content (optional)",
            "content":"Content sent only to the number separately from the above content (optional)"
        }
    ]
}

Reserved message

{
    "reserveTime":"2019-07-25 17:09",
    "type":"LMS",
    "contentType":"COMM",
    "from":"01012345678",
    "subject":"Subject",
    "content":"Content",
    "messages":[
        {
            "to":"01012345678",
            "subject":"Title sent only to the number separately from the above content (optional)",
            "content":"Content sent only to the number separately from the above content (optional)"
        }
    ]
}

Ad message

{
    "type":"LMS",
    "contentType":"AD",
    "from":"01012345678",
    "subject":"Subject",
    "content":"(Ad) company name content [Free Call Block]08012345678",
    "messages":[
        {
            "to":"01012345678",
            "subject":"Title sent only to the number separately from the above content (optional)",
            "content":"(Ad) company name content sent only to the number separately from the content above (optional)[Free Call Block]08012345678"
        }
    ]
}

MMS message

Regular message

{
    "type":"MMS",
    "contentType":"COMM",
    "from":"01012345678",
    "subject":"Subject",
    "content":"Content",
    "messages":[
        {
            "to":"01012345678",
            "subject":"Title sent only to the number separately from the above content (optional)",
            "content":"Content sent only to the number separately from the above content (optional)"
        }
    ],
    "files":[
        {
            "fileId": "4fe2078b-5926-42f2-b6b3-0c7bab9b8c5a"
        }
    ]
}

Reserved message

{
    "reserveTime":"2019-07-25 17:09",
    "type":"MMS",
    "contentType":"COMM",
    "from":"01012345678",
    "subject":"Subject",
    "content":"Content",
    "messages":[
        {
            "to":"01012345678",
            "subject":"Title sent only to the number separately from the above content (optional)",
            "content":"Content sent only to the number separately from the above content (optional)"
        }
    ],
    "files":[
        {
            "fileId": "4fe2078b-5926-42f2-b6b3-0c7bab9b8c5a"
        }
    ]
}

Ad message

{
    "type":"MMS",
    "contentType":"AD",
    "from":"01012345678",
    "subject":"Subject",
    "content":"(Ad) company name content [Free Call Block]08012345678",
    "messages":[
        {
            "to":"01012345678",
            "subject":"Title sent only to the number separately from the above content (optional)",
            "content":"(Ad) company name content sent only to the number separately from the content above (optional)[Free Call Block]08012345678"
        }
    ],
    "files":[
        {
            "fileId": "4fe2078b-5926-42f2-b6b3-0c7bab9b8c5a"
        }
    ]
}

Errors

EMMA v.3 reception result code

EMMA Version: EMMA V3.5.1 and above
IB G/W Report Code: Result code received after transmission by the carrier
IB G/W Response Code: Result code given by the relay company gateway after receiving the message
IB EMMA: Error code processed by EMMA for message delivery request

IB G/W Report Code

Code	Category	Meaning
0	success	Succeeded
2000	failure	Delivery timeout
2001	failure	Delivery failure (wireless network)
2002	failure	Delivery failure (wireless network -> device)
2003	failure	Device power off
2004	failure	Device message buffer full
2005	failure	Shadow area
2006	failure	Message deleted
2007	failure	Temporary device problem
3000	Invalid	Delivery unavailable
3001	Invalid	No subscriber
3002	Invalid	Adult authentication failure
3003	Invalid	Called number format error
3004	Invalid	Device service temporarily unavailable
3005	Invalid	Device call processing status
3006	Invalid	Call denied
3007	Invalid	Phone can't receive callback URL
3008	Invalid	Other device problems
3009	Invalid	Message format error
3010	Invalid	Device doesn't support MMS
3011	Invalid	Server errors
3012	Invalid	Spam
3013	Invalid	Service denied
3014	Invalid	Other
3015	Invalid	No delivery path
3016	Invalid	Attachment size limitation failure
3017	Invalid	Caller ID protection rules violation
3018	Invalid	Individual mobile phone subscriber number subscribed to caller ID protection service
3019	Invalid	Caller ID requested by KISA or the Ministry of Science and ICT to be blocked from all customers
3022	Invalid	Charset Conversion Error
3023	Invalid	Numbers not registered by Caller ID pre-registration

IB G/W Response Code

Code	Meaning
1001	Server Busy (RS internal queue full)
1002	Called number format error
1003	Callback number error
1004	SPAM
1005	No. of use exceeded
1006	No attachment
1007	Attachment
1008	Attachment saving failure
1009	No CLIENT_MSG_KEY
1010	No CONTENT
1011	No CALLBACK
1012	No RECIPIENT_INFO
1013	No SUBJECT
1014	No attachment KEY
1015	No attachment NAME
1016	No attachment size
1017	No attachment content
1018	No delivery permission
1019	TTL exceeded
1020	charset conversion error
S000	Relay request failure (server error)
S001	Relay request failure (server error)
S002	Relay request failure (bad request)
S003	Relay request failure (spam processing)
S004	Quota exceeded
S005	Invalid MMS file
S006	MMS file not found
S007	MMS file expired
S008	MMS file size exceeded
S009	MMS file resolution exceeded
S010	MMS file upload quota exceeded
S011	MMS file upload failure
S012	Recipient number rule error
S998	Unexpected server error
S999	Other errors

IB EMMA

Code	Meaning
E900	Invalid-IB No delivery key
E901	No called number
E902	For broadcast messages: No order of called numbers
E903	No title
E904	No message
E905	No callback number
E906	No message key
E907	No broadcast messages status
E908	No service type
E909	No delivery request time
E910	No TTL time
E911	No attachment extension when the service type is MMS MT
E912	No attachment in the attach_file folder when the service type is MMS MT
E913	Attachment size is 0 when the service type is MMS MT
E914	There are file group keys in the message table but no data in the file table when the service type is MMS MT
E915	Duplicate message
E916	Blocked number by auth server
E917	Blocked number by customer DB
E918	USER CALLBACK FAIL
E919	When it is prohibited to re-send the message because there is a delivery time limit
E920	File group keys in the message table when the service type is LMS MT
E921	No file group keys in the message table when the service type is MMS MT
E922	Error in using restricted characters for broadcast message
E999	Other errors