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SMS problem - 337 error

ampersand
New Contributor

‎09-18-2023 04:33 AM

Hi.

 

I'm trying to setup Sinch in an app I'm making for a US-based client. The client has given me the api key, the service plan id and a from number. Trying to send a test message with a full delivery report and a callback url returns a report of a failed sms with the error code 337 which is as I can see on the error list "Invalid optional parameter".

Now, when I try the same message with my own test credentials it works, I receive the SMS and the delivery report says "delivered".

 

So, any idea what the problem is here?

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1 REPLY 1

Shahzad_Ismail
Community Manager
Community Manager

‎09-19-2023 02:34 AM

Thanks for your question. I have escalated this to our SMS team who will look into this for you.

 

Kind regards,

Shahzad Ismail
Head of Knowledge Management and Community Engagement, Sinch
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