Product allocation procedure group is ignored

What causes this issue?

The product allocation procedure group is ignored because no product
locations procedure has been assigned to the product.

System Response

A warning message appears that ATP ignores the product allocation
procedure group.

How to fix this error?

Maintain the product allocations procedure.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.