RE: No update allowed : quality orders related are still opened
Hello Zarad21,
I have just configured to test your problem and managed to Validate a quality order from a set of three without issues.
- Item Sampling: here is the one I used:

;
- Quality Association: I configured to trigger the QO on registration of the specific Item. Note that no event is blocked. I have also tested with Quality Association trigger being After Product Receipt and found that it did not impeded the process of validating the QO (test failure or pass)

You did not show the setup for your test group. Not sure if the failure or pass of you test i smeant to update an inventory status. In my case, here is the Test Group configuration:

I received a PO with one line of the BBCV item for a quantity of 3 ea. This generated three QO (either triggered by Registration or by Product Receipt).
I tested several times. The only issue I had was when validating a Quality Order that had failed. That was because I had received in a Warehouse Process Enabled warehouse and that the Test Group configuration was to change the Inventory Status on failure. Since you cant mix inventory status on the same LP and I had received the 3 x BBCV on teh same LP, the system did not allow changing the inventory status. To bypass that I unchecked the "Update Inventory Status" when validating and the QO status went to :"Fail":


All this to say that I could not replicate your issue.
Do you have any development that affects quality orders? Do you have other processes (Quarantine manegement) or WMS Work Templates that are triggered by a Quality Order?
Kind regards,
Danny
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