Thanks for your help.

Here is something what I found out.

Zebra provide a app called "DataWedge" to let TC20 users control the build-in scanner's setting. For maximized compatibility and flexibility, DataWedge can host multi-profile settings to provide unique demands of other apps. Zebra also have a DEMO for this, called DWDemo. From my opinion, Quickbooks Desktop Warehouse Manager App should follow this path other then bypass.

As a customer and user, I don't know what strategic of your development is but we do lost compatibility, flexibility and getting troubles in this.  ITF-14 format decode is just one of them. There is another feature lacking, KeyStroke Output. It is not that important for me like ITF-14. When I do Picking/Receiving, if barcode is not correct / changed / not on list, I can add a note and that is a good idea. But, in box of "Enter Custom Message", the code will not stroke out if I trigger scanner. Even the device beeped. I have to manually stroke in.  That is not convenience and effect users experience.