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!