SMS external consent API

How it Works

The SMS External Consent REST API allows the user to send transactional SMS messages to contacts who might or might not be in the Acoustic Campaign SMS database.

Use Case

This REST API allows sending transactional SMS messages to contacts and who might or might not have SMS consent in the SMS database. In this type of situation, consent is managed externally to the SMS database. Typical usage of this API, for example, sending a one-time security code for a password change to the user or air flight gate change.

Requirements to use this API

  • Your Acoustic Campaign org must have SMS enabled by provisioning.
  • A database in your Acoustic Campaign org must have SMS enabled.
  • The user making the API call must be enabled for SMS.
  • The user making the API call must have valid OAuth credentials.



Up to 10 concurrent requests are allowed to our API servers at any given time when using the OAuth method for authentication.



This API supports inline personalization and does not check for consent nor does it resend if the SMS send fails.

Items of Note

  • Contact does not have to be in the SMS database.
  • SMS phone number is added to the database. Adding the Contact to the Acoustic Campaign database allows to send Universal Behaviors, which enable Reporting.
  • Contacts can be cleared from the database by using the Purgefeature. Run a Query on the CREATED_FROM field to identify contacts that are added by the SMS External Consent API.



Parameters for SmsExternalConsentSendPayload

ContentContent for SMS, string, requiredHey %%FIRST NAME%%! Happy birthday!!
ContactsList of contacts (Phone Number must include Country Code). API accepts max 1000 contacts, array, requiredUse Contact ID or Contact Lookup
Channel QualifierSMS Program ID, string, required12345
Personalization DefaultsValue to return if personalization data is not found for a contact., map, optionalFIRST NAME: Valued Customer
SourceAttribute returned as part of the Universal Behavior event., string, optionalTransaction ID 1234

Parameters for SmsExternalConsentContact

Phone NumberPhone Number with Country Code of the Contact from List, string, required19495001234
PersonalizationMap of key value pairs for personalization, map, optionalTracking: Z12A34567

Sample Payload

{ “content”:”Hello. Here is the PIN you requested %%PIN%%.”, “contacts”:[ { “phoneNumber”:”19492319304″, “personalization”:{ “PIN”:”1234″ } } ], “channelQualifier”:”129856″, “source”:”” }

Response Codes

Success202Response body includes API response location and Response ID
Personalization tag does not match DB field name400Wrong personalization tags {personalization tag}
Improper JSON format400Bad request
Invalid SMS program ID400SMS Program is inactive or not found with identifier {SMS Program ID}.
SMS program is inactive400SMS Program is inactive or not found with identifier {SMS Program ID}.
SMS program is empty400Channel qualifier should be present
SMS content exceeds 800 characters400The message exceeded the maximum 800 character limit.
SMS content is empty400SMS content should be present
Contact array has more than 1000 contacts400Contacts must contain at least 1 contact and cannot exceed more than 1000 contacts.
API call does not include a Contact ID or Contact Lookup400Contact information is empty. Please provide contact identifier or lookup keys.
Expired access token401The access token has expired. Token provided was: {Token}
SMS is not enabled for Org, database or user403Forbidden

Check Status of SMS Sent using the SMS External Consent API

SMS messages sent using the External Consent API will not appear in the Campaign user interface. However, you can view send status in the SMS Campaign Manager user interface by selecting Messages.
To check the status of the SMS send, you’ll need the transaction ID returned in the External Consent API response body. Provide this transaction ID in the Get SMS Status API call to return the send status for contact(s) included in the API call.



You can only check the status of the SMS messages and not the status of SMPP SMS messages. The Get SMS Status API does not support reporting the status of SMPP SMS messages.



ID generated from the Response Body of the SMS External Consent REST API callA transaction id returned by POST /channels/sms/sends, string, required6adb75b2-158df6e11e8-fe154a13e7aff661200edcf73

Sample Response Body

  “meta”: {
    “attributes”: {},
    “generalErrors”: [],
    “fieldErrors”: {},
    “links”: [],
    “nextPageUrl”: null
  “data”: {
    “totalContacts”: 2,
    “contactsProcessed”: 2,
    “contactStatus”: [
        “smsSent”: false,
        “message”: “Invalid phone number.”,
        “phoneNumber”: “1×833920903”
        “smsSent”: true,
        “phoneNumber”: “19492319304”
    “errors”: []

Test your API call

Use Swagger to test your API call. To access the Swagger environment for your Org, replace {POD#} with the Pod where your Org exists:
For example, here's the link to use if your Org is on Pod 1:!/channels/sms_to_contacts_post_1