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How can I add all unchecked items in a checklist in Trello to another card in a different list?

carolyn french Community Leader Dec 20, 2020

Some background: I really enjoyed building a menu board for Thanksgiving, using the lists for Appetizer, Side Dishes, Main Course, Dessert, and the cards for the individual dishes with checklists for the ingredients (with pictures too- it was a drool-worthy board). Of course I went through my cabinet and checked off the ingredients I already have in my house. The rest of the unchecked items are what I needed to go shopping for.

I'm trying to find an automation to bring all the unchecked items across all the cards into one card called Shopping, so I have one list to look at when I go to the grocery store.

Now that I'm doing this again for Christmas, I thought I would ask here to see if anyone has any ideas, or if anyone has done this before? TIA!

1 answer

@carolyn french here's a solution and have a blessed Christmas :

when the name of a card starts with "Build my shopping list", collect all cards with an incomplete checklist into links in checklist "gathered_cards" using pattern "[{cardname}]({cardlink})", for each card linked from an item in checklist "gathered_cards", convert all the incomplete items in checklist "{*}" into cards in list "Inbox" using pattern "{checklistitemname}", find a card with link "{triggercardlink}", remove the "gathered_cards" checklist from the card, and rename the card to "My Shopping List"


when the name of a card starts with "My Shopping List", collect all cards in list "Inbox" into items in checklist "Ingredients To Buy" using pattern "{cardname}"


You can have a third command to archive all the cards in "Inbox"

@carolyn french limitation : if you have more than 1 checklist in a course/card, Trello only picks up the first. That had been my observation.

carolyn french Community Leader Dec 21, 2020

Thank you so much for your response!

I'm trying to implement, and I only got so far as the Trigger "when the name of a card starts with "Build my shopping list". Can I copy and paste your solution somewhere so I don't have to build it from scratch in Butler? @milynnus 

@carolyn french here's are the images from Butler screen

Screen Shot 2020-12-22 at 7.56.09 AM.jpgScreen Shot 2020-12-22 at 7.57.03 AM.jpg

Thank you very much for your suggestion! 
I am trying to make the same think for meal planning board. However I get only 10 items in the checklist "Ingredients to buy" while there are more unchecked items on the board. Do you have any idea how to fix this, please?

@carolyn french 

Sorry for slow reply. As you Trello does not work that way. The screen shot is the closes you get. I think. 


there is nothing in the second command that limits the collection except Trello impose timeout. I known they just started to look at this. 

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