errorCode":"CMN-101 - Parameter [from] value is invalid. - Callout not working in Developer Console

I keep getting the error : "errorCode":"CMN-101","message":"Parameter from] value is invalid." from my callout. So I attempted to make the same one in the Developer Console UI and I get the same error.

So this leads me to believe that it has something to do with how the from message is configured somewhere but I need some help understanding what I need to do to get a from phone number that I can use for Sending A2P Send SMS Api.

I checked the Admin Portal and in the TCR Registration it has the number as a Campaign User and Ready for Use and the title says SMS enabled numbers.

Any idea of how I might be able to resolve?

Thank you in advance

Robert

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You mentioned “callout” and “A2P SMS”, which API did you call? Please share some code snippets.

Thank you for the reply and question.

I am using the API Send A2P SMS (https://developers.ringcentral.com/api-reference/High-Volume-SMS/createA2PSMS)

The endpoint is https://platform.ringcentral.com/restapi/v1.0/account/XXXXXXXXX/a2p-sms/batches

I tried it in the Developer Console and here is the screenshot:

Here is my code in Apex:

Here is what I am sending in the body

{
   "text":"Welcome to the XXX Community Platform. You can go to the site at https://XXXXXXXXXXX--robert.sandbox.my.salesforce.com/client/s/to check the status of your account.",
   "messages":g
      {
         "to":"
            "+1931XXXXXXX"
         ],
         "text":"Welcome to the XXX Community Platform. You can go to the site at https://slpattorney--robert.sandbox.my.salesforce.com/client/s/to set up your user account. Your user name is: robert.davis+testcomm1@XXX.com."
      },
      {
         "to":"
            "+1931XXXXXXX"
         ],
         "text":"Welcome to the XXX Community Platform. You can go to the site at https://XXXXXXXXXX--robert.sandbox.my.salesforce.com/client/s/to set up your user account. Your user name is: none@none.com."
      }
   ],
   "from":"+1424XXXXXXX"
}