Unable to perform the transaction

In my scenario, you have a movement request for 50 units, but you need to handle the picking from two LPNs (License Plate Numbers) that each contain 30 units. Given that one of the LPNs is a reel that cannot be split, you want to pick the entire LPN, resulting in picking 60 units instead of the requested 50 units.

How to Ensure that the picking rules in WMS allow for overpicking.

when I am substituting with other lpn, it is giving the following issue: