Failed to create deploymentOur system has detected this request as unusual activity for your account. If you are confident this is in error, please contact support.

Error 715-123420 cannot be cleared from Microsoft Foundry; the subscription must be reviewed and unblocked by Microsoft Support or the relevant service team.

Request the unblock

1. In the Azure portal, open the affected Azure AI Services/Azure OpenAI resource.
2. From its resource menu, select Help → Support + Troubleshooting.
3. Complete the diagnostics, then select Create a support request.
4. Select the subscription that owns the affected resource and classify the request under the closest available Azure OpenAI / Foundry Models deployment technical category.
5. Include:
   • Error code 715-123420
   • Exact error text
   • Subscription and resource names—do not post the subscription ID publicly
   • Foundry project name
   • Region
   • Model and version, such as GPT-4o
   • Deployment type/SKU
   • UTC timestamp of the failure
   • Correlation or operation ID from the failed deployment, if shown
   • A statement that this is a new subscription and the deployment was initiated manually
   • A request for review and release of the unusual-activity deployment block

Microsoft documents the portal support-request workflow and requires Owner, Contributor, Support Request Contributor, or a custom role containing Microsoft.Support/* at subscription scope.^1^

This message has been resolved in matching Foundry cases only after Microsoft reviewed and unblocked the subscription. New subscriptions can trigger automated checks around initial model deployments.^2^

Do not recreate resources or repeatedly retry

Switching regions, recreating the Foundry/Azure OpenAI resource, or repeatedly submitting deployments does not clear this particular block. A closely matching case states that those actions do not remove error 715-123420 and that resource recreation can worsen the suspicious-activity pattern.^3^

After Microsoft confirms that adjustments are complete:

1. Wait the period specified by support; resolved cases commonly instructed customers to retry after 1–2 hours.^4^
2. Perform the first deployment manually in Foundry rather than through automation.^2^
3. If it still fails, update the existing case with a new UTC timestamp and correlation ID rather than creating more resources.

If the portal will not allow a technical ticket

Azure provides unlimited subscription-management support, but technical support requires an eligible support plan.^1^ If the current plan does not expose the technical category:

• Post a Microsoft Learn Q&A question using the Foundry Models tag.
• Include the non-sensitive diagnostic details listed above.
• Ask for moderator escalation for review of 715-123420.
• Never publish subscription IDs, tenant IDs, API keys, or other account identifiers.

This alternative has been used in matching cases where a Microsoft moderator routed the issue to the appropriate team and the deployment subsequently worked.^5^

GPT-4o itself is supported in Azure OpenAI in Foundry Models, so this error does not by itself indicate that the model is unsupported.^6^

References

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