How do you fix "4009: Message is rejected by Microsoft Entitlement System." when sending a SMS

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How do you fix "4009: Message is rejected by Microsoft Entitlement System." when sending a SMS

Don Morgan 5

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Whenever I go to send a SMS it just rejects it with this message. I tried searching around but it seems to be pretty rare. I tried changing the body of the text but no matter what I do it just rejects it by some entitlement system. What's wrong with Azure?

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Don Morgan 5 Reputation points

2024-08-16T17:23:47.04+00:00

Note: I already have an approved regulatory document. I also tried buying a 2nd phone number and I receive the same message. Is anyone actually able to use Azure for SMS?
Don Morgan 5 Reputation points

2024-08-16T17:24:36.48+00:00

Submitted a support ticket.

https://github.com/MicrosoftDocs/azure-docs/blob/main/articles/communication-services/concepts/sms/sms-faq.md4009Message rejected by Microsoft Entitlement System. Most often this happens if fraudulent activity is detected. Contact support for more details.
Joost van der Linden 126 Reputation points

2024-10-08T13:42:58.8166667+00:00

I seem to have the exact same issue. Were you able to resolve this @Don Morgan
Joost van der Linden 126 Reputation points

2024-10-08T13:44:10.5733333+00:00

I seem to have the exact same issue. Were you able to resolve this @Don Morgan ?

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Don Morgan 5 Reputation points

2024-08-16T17:23:47.04+00:00

Note: I already have an approved regulatory document. I also tried buying a 2nd phone number and I receive the same message. Is anyone actually able to use Azure for SMS?
Don Morgan 5 Reputation points

2024-08-16T17:24:36.48+00:00

Submitted a support ticket.

https://github.com/MicrosoftDocs/azure-docs/blob/main/articles/communication-services/concepts/sms/sms-faq.md4009Message rejected by Microsoft Entitlement System. Most often this happens if fraudulent activity is detected. Contact support for more details.
Joost van der Linden 126 Reputation points

2024-10-08T13:42:58.8166667+00:00

I seem to have the exact same issue. Were you able to resolve this @Don Morgan
Joost van der Linden 126 Reputation points

2024-10-08T13:44:10.5733333+00:00

I seem to have the exact same issue. Were you able to resolve this @Don Morgan ?

Answer 1

Support claims I blacklisted myself by sending a single test message before the approval finalized. Based off the documentation and other comments I think it's a lie. My best guess is maybe the previous person that had the number may have blacklisted themselves and it wasn't removed when the number was picked up by me.

Support had to escalate the request to another department that deals with it. They removed the restriction and now I can send texts freely. The whole process took about a week. @Joost van der Linden contact support and cross your fingers, good luck.

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How do you fix "4009: Message is rejected by Microsoft Entitlement System." when sending a SMS

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