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Trello Subtasks with Butler

A common request on the Atlassian community is to track progress on subtasks, for example assigning checklist items to people or adding due dates to checklist items.

As discussed in this article, a great way to do subtasks in Trello is using a checklist, with each item linked to a card:

That article discusses how to do this with Trellinator, but you can also do the same thing with Butler!

One of the cleanest ways to trigger this is to create a button called "Create Subtasks" that will create linked cards for all items in the checklist "Subtasks", as per this screenshot:

2019-04-17 at 2.50 pm.png

Here is what that button looks like in action:

Now that you have a list of linked cards you can move them around, assign them to different people, set different due dates etc.

Next, you can set up a Butler command that triggers when a card is archived and checks off the corresponding checklist item on the "master" card.

That looks like this:

2019-04-17 at 2.57 pm.pngHere's what that command looks like in action:


Great workflow!

Like # people like this

I'm new to Butler, so I may be missing something.

When I choose the "Card Button" option, I have no option to free-text a command, and the droplist commands within the interface don't include a "convert" option.


What am I missing, please?



Iain Dooley Community Leader Nov 14, 2019

@Brian Rafferty It's in the "Cascade" tab:

2019-11-15 at 4.59 pm.png

@Iain Dooley Thanks so much for your help!

I like the idea, but this will create a new list for every set up subtasks (making your board get cluttered very quickly). I tried to reduce this by archiving the subtask list after it is created, but this creates a new problem in that if you ever add new subtasks to the same original parent task, it will create an entirely new list (rather than refer to the one in the archive) and make all sorts of mess.

Is there any way to archive the subtopic list with Butler? I'm only seeing this for cards.

Is there any way of doing if logic to check if the archive exists or not and if so, send back to board, repopulate and rearchive?

If not, do you have any suggestions for how to manage the clutter this workflow will produce?


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