We have one subsidiary that produce and sell from the same warehouse location in Netsuite. We have a couple of items that we need to control before we sell them. Does anyone have a good solution without using inventory status? We want to make the work order completion first and then the quality control. We can not use the work order completion as the quality control. We also need a confirmation in the system that the item is checked. I've been thinking about writing a script that creates an inventory transfer for some items when the work order completion has been made, but if you edit quantity on a completion, you end up with a bit of a complex situation

This is realistically an operational control unless it's gotten to the point where people aren't following the process (Ops problem to deal with). Inventory status or a QC bin are the best ways to start this - I wouldn't use a location for the reasons you mentioned.

Thanks for input. Have thought about the bin too, but then we need to prevent the normal user from two things: 1. To not complete it into another bin than the QC bin 2. To not move it from the QC bin

Provide ops with a saved search of employees who have removed items from the QC Bin that shouldn't have - that would be my step 1. You may need to add a disabled fields on the bin transfer for Created By (populated by a simple workflow) since there's no sys info stored on bin transfers for data purposes if I'm not mistaken.