Make an entry in one of the first four date fields

What causes this issue?

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

System Response

How to fix this error?

Enter at least one the following dates:
Development planning resolution date
Date of the change lock
Date of opinion statement
Effective date

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.