How can I add an item to an existing checklist for a card that is due on a specific day?

[Taylor Dine]

Hi there,

We're using a Trello board with a Card Repeater Power-Up to automatically generate a new card for each day, titled with the date of that day (e.g., August 15, 2025).  We also have one of two checklists that automatically gets added to each card with the tasks due for that day, depending on whether it is a weekday or weekend: "Weekday Checklist" and "Weekend Checklist".

We have recurring tasks that only occur on a specific day of each month (e.g., the 15th), and we'd like these tasks to be automatically added to the appropriate checklist on the card for that day.  How can I achieve this using automations?

The closest I could get was a scheduled automation that creates a new checklist, but ideally, we'd like to have it added to the one that's already on the card.  Also, I am having a bit of trouble getting the automation to work for the first 9 days of the month (e.g., 3 for the 3rd of each month).

Any help would be greatly appreciated.  Thank you!

[Lipakshi Narang]

Hi,

Thank you for reaching out to the Trello Community!

I have looked into the automation rules to find a solution for you.

We have an action under checklist "add Item item_name to Checklist checklist_name" that might fulfill your requirement.

You need to select the required trigger for this action and when the trigger will hit, the new item will be added to the existing checklist.

For the automations not running, please feel free to create a support ticket with us and we'll look into it together.

Hope this helps!

Thanks & regards,
Lipakshi Narang

[Taylor Dine]

Thanks so much, Lipakshi!

The issue I run into when attempting this automation is that there is no good way to get it to add the item to the checklist on specific days.  The cards are automatically being created by a card repeater, so I need to be able to add this to a card that has the day of the month in the name.  I have been attempting this to set the trigger to "when the name of a card contains".  Is there a better way to go about that, or perhaps another way to populate the text box so that it only pulls cards with that date?  It seems easier for the 2-digit dates, but if I try to do this for the 5th of the month, I seem to hit another roadblock as that could also then pull in results for the 15th and 25th.

[Lipakshi Narang]

Hey @Taylor Dine,

I have been checking your requirements in Trello boards, and I also found the matching trigger to be "when the name of a card contains". You can use that to create the automation.

[Taylor Dine]

Thank you!  How do I make that work for the first 9 days of the month?  Because when I try to input the 5th, it could also be picking up the 15th and the 25th.

The other challenge is that there are two different card types: one for weekdays and one for weekends, and the date could fall on either a weekend or weekday, so I'm hoping to have some sort of conditional logic to add it to either the weekday list or weekend list, depending on which is applicable for that month.

[Taylor Dine]

Would this automation work as expected, where the task will be added to either the Weekday Tasks checklist or Weekend Tasks checklist, depending on whether the 5th day of the month falls on a weekday or weekend?