Current Dynamics, PO cancel is not enable after invoiced on intercompany transaction.

However, I feel more kindly that PO cancel is not enable after shipping sales side.

I thought that if the lock doesn't change either after shipment or after invoice,

it should be set at an earlier point in time.

I also thought the timing of allocating the product would be good.

I would rather have these options as parameters so that users can choose.