3564208 - Goods receipt not reduced by invoice in FM after Return delivery

You post an MM document chain as follows:
Purchase Order (PO)
Goods Receipt (GR)
Invoice Receipt (IR)
Return Delivery with movement type 122
New Goods Receipt (GR)

And you expect the new GR is reduced automatically considering the existing IR, however it is not happening.

In some specific constellations, this may lead to unexpected Budget exceeded errors such as FMAVC005.

Both GRs and IRs are relevant for FM update set in transaction OFUP
Movement type 122 is customized in transaction OMJJ to allow for reversals after IR exists ('RevGR despite IR'  = X)

movement type 122, OFUP, XWSBR, WEBRE, GR not reduced, FMAVC005 , KBA , PSM-FM-UP-FI-GR , Goods Receipt Reduction , Problem