Applies To: Project Operations for resource/non-stocked based scenarios, Lite deployment – deal to proforma invoicing
I have seen this error pop up when users get assigned the OOTB Security Roles, such as Project Manager, Project System, Project Approver, and others.
The behavior is: One a user tries to book a resource in the schedule board, and they get a pinkish top bar error saying it they can’t:

Two, parts of the schedule board display this error, and they cannot see the records (Open Requirements Tab for instance):

Error Message: Something went wrong
Try reloading the page. If you still see this message, please contact your administrator to file a support request.
This is a security access issue that can be resolved by granting access to these tables inside the security role(s), and normally these are the culprits:
prvReadmsdyn_Configuration
prvReadmsdyn_tour
prvReadmsdyn_priority
Official Documentation for reference: https://learn.microsoft.com/en-us/dynamics365/project-operations/environment/security-model
So simple to fix once you know what to do, right?
See you next time with more on Dynamics 365 Project Operations!