Hi all! Can we adjust the quantity of a PO if it is linked to an open inbound shipment?

Yea but not lower than what is already linked to inbound shipment.

What if it is lower than what is in the inbound shipment? What can we do to adjust it? Do you know any workarounds?

Not possible. Why you wanna change it just receive the quantity shipped by vendor and close the inbound shipment.

You'd have to update the inbound shipment and possibly an ownership transfer first