The reason is that we selected ‘GR-based IV‘ in the PO document,
It means that we need do GR against this PO first, then we can do IV. But there is no GR history for this PO document.
ML81N to conduct GR for this FO order, then do IV;
Or ME22N to change this PO, unselect this checkbox, you can ask help from Winnie for this PO change, then try to do IV again.
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