715-123420: Our system has detected this request as unusual activity for your account. If you are confident this is in error, please contact support.

Stop additional deployment attempts and open an Azure support request for Microsoft to review and release the restriction associated with error 715-123420.

Submit the review request

1. In the Azure portal, open the affected Foundry/Azure AI resource.
2. Select Support + troubleshooting under Help.
3. Complete the suggested diagnostics, then select Create a support request. You can also start from Help + support → Create a support request. ^1^
4. Select:
   • Issue type: Technical
   • Service: Azure OpenAI or Microsoft Foundry Models
   • Problem type: Model Deployments, or the closest available deployment category
5. Include:
   • Error code 715-123420 and its complete message
   • Subscription ID and affected resource name
   • Model name/version and deployment type
   • Azure region
   • UTC timestamp of the failed operation
   • Correlation ID and deployment operation ID
   • Whether the subscription or resource is new
   • A brief, legitimate-use-case description
   • The screenshot

Do not place subscription IDs, correlation IDs, or other account details in a public Q&A post; provide them privately through the support case.

The exact error has been resolved in comparable Foundry deployment cases only after the Microsoft product team analyzed and adjusted the account or subscription state. ^2^ Another matching case required the subscription to be explicitly unblocked. ^3^

Collect the operation details

Before submitting the request:

1. Open Azure portal → Monitor → Activity log.
2. Filter to the failed deployment’s time range and affected resource.
3. Open the failed deployment operation.
4. Copy its timestamp, error details, correlation ID, and operation ID into the case.

Avoid repeatedly retrying, switching regions, or deleting and recreating the resource. A closely matching case reports that those actions do not clear this restriction and that it must be reviewed by Microsoft. ^4^

If the support workflow is unavailable

Post a follow-up on Microsoft Q&A under Azure OpenAI in Foundry Models, requesting moderator escalation for 715-123420. Include only non-sensitive facts publicly:

• Subscription type and approximate age
• Region, model, and deployment type
• UTC failure time
• Confirmation that the exact error is 715-123420
• Support-request number, if one was created

After Microsoft confirms that the restriction has been released, wait for the interval they specify and make one manual deployment attempt in the Foundry portal. In one matching new-subscription case, Microsoft specifically recommended completing the initial deployment manually before using automation. ^3^

References

1. Create an Azure support request
2. Error 715-123420 when deploying model in Foundry - Microsoft Q&A
3. Model deployment blocked with error 715-123420 "unusual activity" - Microsoft Q&A
4. Model Deployment error: 715-123420 - Microsoft Q&A