"If you create your warehouse receipts in advance you will have problems finding them since the list of warehouse receipts does not really include any useful information."
"If there are remaining lines or quantities on the warehouse receipt, then delete it! If not the list of warehouse receipts will grow and you will have an hard time finding back to it."
...the original question was practical and based on actual practice in receiving and doesn't assume one receipt per day or whatever you're assuming.
I'd like to know how to determine whether an item is Lot-controlled before trying to receive it...without just taking a shot at it and waiting for the error message.
