SAP Message 06874 - Release strategy will be changed despite status &

Diagnosis
You wish to change a released purchase requisition although an RFQ(status "A") or a purchase order (status "B") has been generated forthe requisition in question.
This change will result in the requisition becoming subject to adifferent release strategy. It will then be necessary for it to bere-released.

Procedure
Check your input.
Are you sure you want to save the changes?