I would call a microflow to open the page where that data grid is, and in that microflow you can calculate and change the value of ‘caisse total’ before open the page, something like this:
I hope this can help you.
I have very little experience with Studio Pro. I just got it to work (at least in testing). And I don’t know if this is the proper way to do it. The version I am using is 9.10.1. What I did is:
And the consistency error goes away. :-)