ERROR: 20003 

The error 20003 – Credentials are invalid or the account has been suspended indicates that the system was unable to authenticate with Carrier. This typically occurs when the  Account SID, Auth Token, or API credentials are incorrect, expired, or when the account has been suspended.

This error prevents SMS, MMS, or call-related requests from being processed successfully.

Possible Causes

1. Invalid Account Credentials

  • Incorrect Account SID

  • Incorrect Auth Token

  • Invalid or deleted API Key / Secret

  • Credentials copied with extra spaces or formatting errors

2. Account Suspension

  • Account suspended due to billing issues

  • Policy violations or compliance concerns

  • Trial account restrictions

  • Account manually closed or deactivated

Possible Solutions

  • Confirm that the Account SID and Auth Token entered are accurate.

  • Make sure you are accessing and using credentials from the correct Carrier account or subaccount.

  • Verify that the  account is active and not suspended or closed.

  • Check that no additional spaces or unintended characters were included when copying and pasting the credentials.