Workspace request validation failed, check error details for more information (Code: ValidationFailed)

Question

I am having problem in creating Azure Synapse Account in South UK Region and West UK Region and I dont know what the problem is, but I asked Copilot the question but he gave me the answer below.

What is the solution to it before my credit run out of the 30 days O needed to make use of it.

Workspace request validation failed, check error details for more information (Code: ValidationFailed)

The deployment error you're encountering is due to a validation failure during the creation of a Synapse workspace. The specific issue is that the location 'ukwest' is currently not accepting the creation of new Windows Azure SQL Database servers for your subscription. This is causing the deployment to fail with a "ValidationFailed" error code.

Here's a summary of the key details:

• Deployment Name: Microsoft.Azure.SynapseAnalytics-20260928094150
• Deployment ID: /subscriptions/4695e491-9341-4364-9469-ea73e82dbeac/resourceGroups/lekanomo/providers/Microsoft.Resources/deployments/Microsoft.Azure.SynapseAnalytics-20260928094150
• Primary Error Code: DeploymentFailed
• Operation Status: Failed
• Error Details: The location 'ukwest' is not accepting new SQL Database server creations for your subscription at this time.

To resolve this issue, you may need to choose a different region that allows the creation of new SQL Database servers or check with Azure support for more information on the region's availability.

Answer 1

Hello David Omogbehin

Error SqlServerRegionDoesNotAllowProvisioning means that Azure SQL server provisioning is currently unavailable for your subscription in the selected region, and Synapse workspace creation depends on that SQL capability.

I suggest the following:

1)Make sure the required resource providers are registered:

az provider register --namespace Microsoft.Sql 
az provider register --namespace Microsoft.Synapse

Check the status:

az provider show --namespace Microsoft.Sql --query registrationState

It should return Registered.

2)If Microsoft.Sql is already registered, try creating the Synapse workspace in another supported region such as North Europe or West Europe.

3)If you specifically need UK South or UK West, open an Azure Support request and ask for Azure SQL provisioning/region access for your subscription. Microsoft documents this error as potentially caused by subscription-level regional access or capacity restrictions.

Official documentation:
Resolve Azure SQL capacity and region errors

Register Azure resource providers

Create an Azure Synapse workspace

Since you are using a 30-day Azure credit, I would first try North Europe or West Europe so you can continue the lab without waiting for a regional access request.

Also, please edit the public post and mask the Subscription ID.