An Azure communication platform for deploying applications across devices and platforms.
Standalone services in Azure Communication Services will retire on 30 September 2028
We received a notification from Microsoft Azure and wanted to check since we have several forms set up on Azure. Do you need to update our settings so these forms continue to run smoothly? Standalone services in Azure Communication Services will retire…
Azure Communication Services
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Azure Communication: Delayed Short Code Application Review — Awaiting Carrier Approval
Problem description I submitted an Azure Communication Services short code application on July 9, 2026, with an expected readiness date of September 3, 2026. However, after that date passed, I noticed that the application status remained 'Submitted' with…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Intermittent 404 DomainNotLinked on a linked, verified custom domain since 2026-10-01 (most sends fail)
Hi all! Could someone give me some light into a failure situation with ACS email sending? Since 2026-10-01 06:30 UTC, most email sends from our Azure Communication Services resource (data location UK) fail with HTTP 404, x-ms-error-code…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Azure Communication Services Calling SDK: post-2028 support for custom clients using Teams identities
We are using Azure Communication Services Calling SDK in a custom web application with Microsoft Teams identities. Our flow is: User signs in with MSAL / Microsoft Entra ID using their Teams account. We exchange the Entra ID token for an ACS token for…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Copilot Studio no reconoce cuenta de WhatsApp Business ya conectada y activa en ACS ("No hay cuentas de WhatsApp asociadas al recurso...")
Hola a todos, Estoy intentando conectar el canal de WhatsApp de mi agente de Copilot Studio a un recurso de Azure Communication Services, pero Copilot Studio no reconoce una cuenta de WhatsApp que ya está activa y correctamente configurada. Estado…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Communication Services: Issue with Enabling Dynamic Alphanumeric Sender ID — Not Available
Problem description I am trying to enable the Dynamic Alphanumeric Sender ID feature in Azure Communication Services, but the option is not available in the portal, despite documentation indicating support. The same problem persists across multiple…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
azure communication services retirement & target architecture and its alternative
Retirement means a service, feature, model, or SDK is permanently removed from Azure and isn't available after September 30, 2028. This condition applies even when you use the retired product with other supported services described in this guide. After…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Unable to cancel and resubmit ACS Toll-Free Verification applications with corrected website URLs
Azure Support asked us to resubmit our rejected ACS Toll-Free Verification applications. The original applications were rejected on August 24, 2026 for the following reasons: <PII removed> However, while resubmitting, we mistakenly submitted the…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Feedback on ACS Email retirement: please preserve an Azure email option
Hello Azure Communication Services team, I would like to share feedback on the announced retirement of ACS Email on September 30, 2028: https://learn.microsoft.com/en-us/azure/communication-services/acs-retirement-and-breaking-changes-guide ACS Email is…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Unable to complete Azure for Students verification
Hello Microsoft Azure Support Team, I am trying to sign up for the "Azure for Students" offer. I successfully completed the academic verification process (I received the verification email from the Microsoft Academic Verification Team and…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
ACS Email custom domain not delivering to Apple/iCloud while Azure-managed domain works
Azure Communication Services Email custom domain messages are not delivered to Apple/iCloud recipients, while the Azure-managed domain works correctly. Custom domain: email.<mydomain>.pl Reproduction: Azure-managed ACS domain -> same…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Communication Services: Handling HTTP 429 Errors During Email Sending — Rate Limiting Issue
Problem description I am experiencing HTTP 429 Too Many Requests errors when attempting to send emails via Azure Communication Services Email using the az communication email send command. This issue impacts the delivery of OTP emails for my…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Is bidirectional audio streaming supported for outbound PSTN calls under Teams Phone Extensibility after the ACS retirement?
We have an outbound conversational AI voice agent built on Azure Communication Services Call Automation: createCall to PSTN from an ACS phone number bidirectional media streaming over WebSocket (enableBidirectional: true, PCM 24 kHz mono) connected to…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Communication Services: Request for Increased Email Quota to Add MailFrom Address — Verification and Default Limits Issue
We use Azure Communication Services Email for transactional email from our application. Our custom domain is fully verified with SPF, DKIM and DKIM2 and is connected to our Communication Services resource. We need to add an additional MailFrom address,…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Azure Communication Services Call Automation media streaming misses the first sentences after call connection
We are using Azure Communication Services Call Automation with the .NET SDK and realtime media streaming over a WebSocket. Our backend starts media streaming when the call is created/answered and receives the MediaStreamingStarted event. However, the…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
ACS Advanced Messaging for WhatsApp retirement - What is the recommended migration path?
Hello ACS Community, We are currently using Azure Communication Services Advanced Messaging for WhatsApp in our application for sending and receiving WhatsApp messages. We recently received a Microsoft notification stating that standalone Azure…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Communication Services: Request to Increase Email Sending Limits — Pending Approval
Problem description I am seeking assistance to increase the sending limits for Azure Communication Services Email on my verified custom domain. Currently, the default limits are 30 messages per minute and 100 per hour, but I need to send around 21,000…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
ACS Calling SDK: Teams recipient policy lookup returns 401/5002 despite successful calls
We use @azure/communication-calling 1.43.1 to make Teams-to-Teams calls through an authenticated Teams user. Calls connect and bidirectional audio/video work, but the SDK repeatedly fails to retrieve the recipient’s policy. We reproduced this with two…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Communication Services: Need to acquire additional phone lines beyond default limit — How to request more?
Problem description I have an Azure Communication Services resource with five existing phone numbers and want to purchase five more. I'm unsure how to request additional numbers beyond the default quota of five per resource. No error messages or logs are…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.
Azure Communication Services: German local PSTN numbers unavailable after Pay-As-You-Go upgrade
Hello, I'm trying to acquire a German local PSTN number for an Azure Communication Services workload. After moving the Azure subscription from the free trial to Pay-As-You-Go, the subscription is active and billing is working. The Communication Services…
Azure Communication Services
An Azure communication platform for deploying applications across devices and platforms.