Error and status messages

Error code	Description
`1001` - Last mapped bot and sender details mismatched	It occurs if your Access API app is not Live yet and you are using the sandbox mode to send a template message. To receive messages from your Access API app in sandbox mode, you must first send a WhatsApp message (proxy YourAppName) to the Gupshup proxy phone number (+917834811114).
`1002` - Number does not exist on WhatsApp	The phone number you sent the message to is not registered on WhatsApp.
`1003` - Unable to send message \| Check your wallet balance	Message sending failed because of insufficient balance.
`1004` - Message sending failed as user is inactive for session message and template messaging is disabled.	You have disabled template messaging for your app, and the user is not active for a session.
`1005` - Message sending failed as user is inactive for session message and template did not match	The message is not a template message, and the user is not active for a session.
`1006` - Message sending failed as user is inactive for session message and not opted in for template message	The user is not opted-in, and the user is not active for a session.
`1007` - Message sending failed as user is inactive for session message, not opted in for template message and template did not match	The message is not a template message, the user is not opted-in and not active for a session.
`1008` - User is not Opted in and Inactive	The user is not opted-in and not active for a session.
`1010` - Invalid Media URL	It occurs if your Access API app is not Live yet and you are using the sandbox mode to send a message. A sandbox Access API app is limited and only supports sending media messages given here.
`1011` - Invalid Media Size	The size of the media file is not supported.

For any other error code, click here.