Use loop to add multiple rows from a table to antoher

[Andy_strathmore]

There is a table call sale, a virtual column call stock level is ref to prodcut stock in stock table.
I want to add all the row in sale table which stock level is greater than 0.
once I try to action the loop, it will become infinite loop and the app will down.
Any one can help me with this question?
Or any suggestion for building a multiple rows add from one table to anther with conditions.

[Marc_Dillon]

Use a “reference Action” instead of a Group-loop, it is Action type “execute an action on a set of rows”.