Update User Picker (multiple users) customfield by automation rule

[Vsevolod Romanchenko]

Greetings! I have the next issue

User Picker (multiple users) A and User Picker (multiple users) B

I need to create a rule, that will update A, if user add changes to B

Example:

In customfield A we have user 1, user 2, user 3, user 4

If add a values user 2, user 1, user 4 in customfield B, remove these users from customfield A.

Problem:

I can remove users from customfield A by next rule

Smartvalue StudentId

change customfield A json

The rule works correctly if you add one user, but if you add several at once, the rule gives an error.

I try to solve the problem through For each, but it doesn't work

Please, tell me, how to solve my problem ?

[Anatoli Hadukhin]

Hi @Vsevolod Romanchenko

I know it's been quite a while since you posted this, but I wonder if you've managed to make it work. I've just tried using a branch in the same scenario, and several users I had added to a user-picker (multiple users) field were successfully removed from another user-picker (multiple users).

If still relevant, could you share a screenshot of the error you get?