TF400409: You don’t have licensing rights to access this feature: Web Based Test Execution – Azure DevOps Error

Full Error:
TF400409: You don’t have licensing rights to access this feature: Web Based Test Execution. (Microsoft.TeamFoundation.Server.Core.MissingLicenseException, Microsoft.TeamFoundation.Server.Core)

Solution
If the user is a stakeholder, then the user’s licenses needs to be upgraded to basic to enable this feature.