Hi Jorgclf 

If you are experiencing the message when moving your work order from planned to firm, then this message is controlled by the parameter value RELUPD:

If you experience this message after changing the release quantity, then this is controlled via the parameter values TRACKMATWO  & TRACKOPEWO:

Turning them to No will turn off the message.

Hi Julien Patureau ,

Thanks for the answer.

This situation happens between the moment that I set my final product and the materials are charged.

I've already tried those parameters, and they hide the message, but they have created an undesired impact. If they are set to 'No', I can not change anything on the materials tracking. ( the routing is defined to allow the change of materials).

So now, I'm just hidding the message by the Entry Point "GESECRAN", until I found how to solve it properly.