Hi @Moncrab! Welcome to the community!
For this you need to combine two actions:
- Data: execute an action on a set of rows
- Data: set values of some columns in this row
As you can see from the name of the second action (the one you are trying to use now), it only writes to the row you are on. So, you need another action to identify the table and row to write to and the action to occur there.
P.S. The name of the first action indicates that it can be used on multiple rows, but it is also the action you need to use even if you just want to write to one row that is different from the one you are on.