You must have confirmation document (E-mail) from management to do cancellation of produced materials.
Let’s carry out Doc-Specific Cancellation in MFBF (or transaction MF41):
put plant and material number here:
you’ll get results of backflushed data:
choose the backflush item (set cursor to beige bar) with wanted qty and date and press the “Reverse” button on the toolbar.
You can repeat it.
P.S. Doc.-Neutral Reversal:
Press the Doc.-Neutral Reversal button: