Trello Attachments - Is it possible to "Connect Cards" automatically?

[Deleted user]

I have a lot of Trello cards that are separate tasks but related to each other (e.g. two completely unrelated tasks that randomly involve the same person and I would like to have everything in front of me when I call said person).

I have been loving the Trello Attachments feature to link those cards. However, the one thing that I don't love is that I have to manually select "connect cards" in order to link Card B to Card A.

In general, when I link Card A to Card B, I would also like to link Card B to Card A. Is there a way to set that up automatically, i.e. the trigger would be adding a Trello Attachment (Card B) to Card A, then the action would be to attach Card A to Card B without manually clicking on "connect cards."

See the steps I must take each time:

It's only 2 steps but I would rather it be 0, since doing this every time is a bit annoying. I would love to know if there's a solution!

[milynnus · Accepted solution]

@[deleted] 

When you use Trello automation, there is connect option that will connect the two cards. 

[Deleted user]

Thanks! Your answer is a little vague but I did manage to figure it out.

In case someone else will have the same question, here's exactly what I did:

1. Trigger (Card Changes): when an attachment is added to a card
2. Action (Cascade): for each card linked in the attachments
3. Action (Cascade): link the cards together

I'm not sure if Step 2 was necessary, but I did it to be safe, and the automation works like a charm!

[Szilveszter]

Thanks for the answer, it's very useful and works great for me too! Step 2 is required, and the operation is done correctly.

The problem is that there is no feedback about the succesful operation. The "Linked" text does not appear under the thumbnail and when I click on the menu, the "Link attachments" text is still visible. When I click on it, the card appears twice on the other card.

The "Linked" text only appears when I refresh the page, which is inconvenient for my colleagues who need to work quickly. If there is no immediate feedback, we can only be sure that the operation was successful by clicking again.

Maybe you know some good tricks for this?