Hi Mahesh Upadhyay,
Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.
I'm sorry to hear that you're experiencing issues with creating Dev Box definitions due to quota limits. Free trial accounts typically have lower limits compared to paid subscriptions, which can restrict the ability to create certain resources like Dev Boxes.
As mentioned in the document: https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/azure-subscription-service-limits#microsoft-dev-box-limits
Free trial and Azure for Students subscriptions do not provide any resources for Dev Box. If you are using one of these subscription types, you will need to upgrade to a paid subscription to request a quota increase and create Dev Box definitions.
While test accounts allow users to explore Azure services, they may not provide the full functionality needed for more complex tasks like setting up Dev Boxes.
Upgrading to a pay-as-you-go plan may be necessary for those looking to fully utilize Azure's capabilities without encountering these restrictions.
Hope this helps!
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