Prevent PO item from beeing changed after goods receipt or invoice receipt

Hi all,

Users had the good idea to change the description of the goods to be purchased, after a partial goods entry was already posted. Now they complain that what they get is not what they ordered (...)

Is it possible to prevent a PO item line from beeing changed with ME22N, after e.g. a partial goods receipt has been posted, or the MIRO posting has been done?

Thanks for information!

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