New Rule for added checklist items
Asked by TeFa - Armin Bayer:

Hi Folks,

i am trying hard to figure out, how i can create a rule that updates all my already existing Checklist on various cards when i am adding a new Item to this specific Checklist.

For example i have a Checklist named "Important Tasks" on various Cards which contains 5 Items to check. Now i want to add another Item to this Checklist and have this Checklist automatically updated on all Cards that have this Checklist in place.

I hope u all do understand what i am trying to do.

Anyone an brilliant Idea? Thanks for ur help in advance!

Cheers


Answers:
author: Alina Kurishko
body: Hey there,

Welcome to the Atlassian Community! ?

There's currently no built-in feature like this, but I'll pass your interest in this on to our team for consideration!

With that said, there's also no easy way to accomplish your goal with Automation either, but you can try linking the cards together (either by an Automation rule or manually by adding a card link to another card as an attachment) and then create a rule similar to this one:

```
when an item is added to checklist "checklist_title" in a card in list "list_title", for each card linked in the attachments, add item "{checklistitemname}" to checklist "checklist_title"
```

If you're only starting to create your Automation, I'd recommend taking a look at these pages:

* [Automation Introduction](https://trello.com/guide/automate-anything#intro-to-automation)
* [Automation Overview](https://support.atlassian.com/trello/docs/butler-overview/)
* [Automation Variables](https://support.atlassian.com/trello/docs/butler-variables/)

Another way would be to add the Checklist item through API using this [end point](https://developer.atlassian.com/cloud/trello/rest/api-group-checklists/#api-checklists-id-put), but that will require some technical knowledge to be performed.

Last but not least, you may find a third-party Power-Up to help you with this request as well. You can check available Power-Ups at <https://trello.com/power-ups/all>

Because many of these services are provided by separate companies, outside of Trello, we can't endorse any specific Power-Up or provide any support on how to set them up as we might not have much information on such Power-Ups.

Hope this information helps!

Alina \| The Trello Team

comments: author: TeFa - Armin Bayer
body: Hi Alina,

sorry for this delayed reply. Was busy with other Projects. The rule works fine for me. Thank you very much!  
But i am not able to create myself a button that will link all the Cards from one list to this one card where i have createt the checklist rule onto.

It should be something like "for each card in List XX" Link the cards together.

I have tried to copy and paste the card links together manually which works fine for me, but its a hell of cards to do so.

Any Idea?

Cheers


author: Alina Kurishko
body: Hi,

No worries! Glad to hear at least that rule works ?

Unfortunately, there aren't currently any Automation actions that would apply bulk changes to cards based on their location in a list.

To make things at least a little easier, I can suggest creating a Card button via Automation, which would link any card you're clicking the button on to that 1 card:

![Card button.png](https://community.atlassian.com/t5/image/serverpage/image-id/297928i6100A3856AA01695/image-size/large?v=v2&px=999 "Card button.png")

But this would work only if you want multiple cards to be linked to only 1 card. Otherwise, you'll need to create multiple buttons to be able to link cards to various other cards that you need to specify in the rules.

Hope this works out for you!

Alina \| The Trello Team


author: TeFa - Armin Bayer
body: Works fine for me. Thanks for your help!

Cheers Armin