SAP Message CC278 - You cannot withdraw the "Technical release" indicator

Diagnosis
You have chosen the function Release package.

System Response
When you do this, the system sets the Technical releaseindicator.

Procedure
You receive this warning message because you cannot make any furtherobject changes to a change package that has been technically released.
Only choose the Release package function if you have completedall object changes with reference to this change package.