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Assignment Sync between Checklist Items and Linked Cards

Jon Cavallo
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July 21, 2025

Overview

I'd like to request a new automation capability for Trello that would create a two-way synchronization between checklist item assignments and linked card memberships.

Requested Functionality

  1. Checklist Item Assignment → Linked Card Membership:

    • When a user is assigned to a checklist item that contains a linked card
    • Automatically add that user as a member to the linked card
  2. Linked Card Membership → Checklist Item Assignment:

    • When a user is added to or removed from a card
    • Automatically update the assignment of the corresponding checklist item that links to this card

Use Case

This feature would be especially valuable for teams that use checklist items to track dependencies or related tasks across multiple cards. It would ensure that the right people always have visibility into all relevant work items without requiring manual updates in multiple places.

Benefits

  • Reduces manual work of adding members to multiple related items
  • Prevents situations where someone is assigned a checklist item but can't access the linked card
  • Maintains consistency between related work items
  • Improves team visibility and collaboration

Implementation Suggestion

This could be implemented as a new automation rule type in the existing automation capabilities, allowing users to enable this sync behavior on specific boards where needed.

Has anyone else found this functionality useful or have workarounds for this use case? I'd appreciate any insights from the Trello team on whether this might be considered for a future update.

1 answer

0 votes
Theodoro Reato
Atlassian Team
Atlassian Team members are employees working across the company in a wide variety of roles.
July 23, 2025

Hi Jon,

Thank you for the detailed case! I created a feature request for you:

I have also added this community post as an internal comment to this report.

I recommend watching the feature request to receive updates! You can also interact with the feature request by commenting on it.

You can learn more about this by reading our Implementation of New Features Policy:
New Features Policy.

 

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