How to resolve No hosted parallelism has been purchased or granted Error in Azure Devops?

 

Potential root cause and fix:

Microsoft has temporarily disabled the free grant of parallel jobs for public projects and for certain private projects in new organizations. However, you can request this grant by submitting a request. Submit a ticket using below url to request increased parallelism in Azure DevOps. Please note that it takes us 2-3 business days to respond to your free tier requests.

https://forms.office.com/pages/responsepage.aspx?id=v4j5cvGGr0GRqy180BHbR63mUWPlq7NEsFZhkyH8jChUMlM3QzdDMFZOMkVBWU5BWFM3SDI2QlRBSC4u

Second Option:

You can configure self-hosted agent in Azure DevOps.