R39108 Project Area - Link To Both Project And Project Group Not Allowed

Code	R39108
Entity	Projects.Agile.ProjectAreas Entity
Name	LinkToBothProjectAndProjectGroupNotAllowed
Attribute	Project, ProjectGroup
Layer	Back-End
Events	Commit
Priority	Normal
Modify	NO
Action	The rule validates that Project and Project Group cannot both have a value at the same time. If the Project field has a value, the Project Group field must be empty. If the Project Group field has a value, the Project field must be empty.
Description	The rule prevents invalid and ambiguous configurations by ensuring that a Project Area cannot be linked to both a Project and a Project Group.
Message	A Project Area cannot be linked to both a Project and a Project Group. Please specify only one or leave both empty for a global area.
Version	Introduced: v.26
Revocable	NO

* For more information about the Business Rules Documentation Template and a short explanation of each column, see topic System Business Rules.