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Set rule so that only admins can add members to a specific card

Hi Trello community,

I am trying to accomplish something fairly simple at first glance. In our
workspace, there are several members in our team collaborating on the board.
I am the 'admin' and all other members have 'member' permission. 

I am looking to do the following: only I can add or remove members from
cards, so nobody else in the team can edit the members assigned to a
specific card.

Thank you very much in advance for your help.

1 answer

0 votes
Hannah Morgan Community Leader Jul 31, 2022

Hi @Jorge Álvarez ! Welcome to the community :) for the moment, Trello doesn't offer much customization around user-level permissions; board members have the ability to edit most elements on a board and it's not currently possible to remove the ability to edit a specific card field. 

One workaround could be to use butler automation to revert changes that users make to card members.

E.g. a command that triggers when a member is removed from a card:

when someone is removed from a card by anyone except me, add member @{matchedusername} to the card

and another command that triggers when a member is added to a card:

when someone is added to a card by anyone except me, remove member @{matchedusername} from the card

You may also want to add another action to alert the user, e.g. "and post comment "@{username} FYI you don't have the ability to remove members from cards!""

Hello Hannah,

Thank you so much for the detailed response. Your answer makes a lot of sense and I think will work for us.

However, when trying to implement them, I don't seem to be able to get them to work - what am I doing wrong here?

Thank you in advance.

Hannah Morgan Community Leader Sep 12, 2022

@Jorge Álvarez it looks like the image is broken - are you able to try upload again? 

Hi Hannah, sorry for that.

Maybe now it's correctly uploaded.

Thank you in advance.unnamed.png

Hannah Morgan Community Leader Sep 19, 2022

@Jorge Álvarez looks like you've used the wrong trigger - it should be "when someone is removed" not "when @someone is removed". The latter will be trying to find a user called "@someone".

butler trigger.PNG

That did work! Thank you so much @Hannah Morgan

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