I want to use High Volume SMS. We have been told that our phone number is enabled for this. However, when I try to use it from the endpoint explorer (https://developers.ringcentral.com/api-reference/High-Volume-SMS/createA2PSMS) I always get this error:
{ "errorCode" : "InsufficientPermissions", "message" : "In order to call this API endpoint, application needs to have [A2PSMS] permission", "errors" : [ { "errorCode" : "CMN-401", "message" : "In order to call this API endpoint, application needs to have [A2PSMS] permission", "permissionName" : "A2PSMS" } ], "permissionName" : "A2PSMS" } |
I don't see anywhere I can enable A2PSMS permission either on an existing app or in the flow to create a new app. How can I get this permission enabled? At this point I'm convinced it is something that RingCentral admins need to configure for my app.
I have tried emailing Dev Support but have had no responses for days.
