Merge pull request #277236 from dbasantes/main

UK Alpha sender ID mandatory registration

Author: AnnaMHuff

articles/communication-services/concepts/numbers/phone-number-management-for-united-kingdom.md

@@ -30,6 +30,9 @@ Use the below tables to find all the relevant information on number availability
 
 \** Please refer to [SMS Concepts page](../sms/concepts.md) for supported destinations for this service.
 
+> [!IMPORTANT]
+> Effective **June 30, 2024**, unregistered alphanumeric sender IDs sending messages to UK phone numbers will have its traffic blocked. To prevent this from happening, a [registration application](https://forms.office.com/r/pK8Jhyhtd4) needs to be submitted and be in approved status.
+
 ## Subscription eligibility
 
 To acquire a phone number, you need to be on a paid Azure subscription. Phone numbers can't be acquired by Azure free credits. Also, due to regulatory reasons phone number availability is dependent on your Azure subscription billing location.

articles/communication-services/concepts/sms/sms-faq.md

@@ -97,6 +97,9 @@ Once you have submitted the short code program brief application in the Azure po
 > [!IMPORTANT]
 > Effective **November 30, 2023**, unregistered alphanumeric sender IDs sending messages to Australia and Italy phone numbers will have its traffic blocked. To prevent this from happening, a [registration application](https://forms.office.com/r/pK8Jhyhtd4) needs to be submitted and be in approved status.
 
+> [!IMPORTANT]
+> Effective **June 30, 2024**, unregistered alphanumeric sender IDs sending messages to UK phone numbers will have its traffic blocked. To prevent this from happening, a [registration application](https://forms.office.com/r/pK8Jhyhtd4) needs to be submitted and be in approved status.
+
 ### How should an alphanumeric sender ID be formatted?
 **Formatting guidelines**:
 - Must contain at least one letter