Not to creat Product Warehouse Task with Q-Stock

Hello everybody,

I am the beginner in EWM. Maybe my question will be a little bit funny for you.

Nevertheless, my question is following:

Is it possible not to create product WT when the stock in Q or B?

I post GR in ERP (stock in Q), in EWM I get the the stock in Q.The next step: I create product WT (tr. /SCWM/ADPROD) and here business asks me to forbid the creation of WT with Q-stock.

Is it possible to create standard error message? If yes, how?

Thanks in advance.

BR,

Catharine.