既存の期日を変更したい

[haruka__minami]

Aという名前のリストに、7/24が期限として設定されている100件のカードがあります。

この期日をオートメーションで8/22に変更したい場合、どのようなオートメーションを組めばよいでしょうか？

「When list "A" has more than 1 cards, move the due date to august 22nd」というオートメーションは組んでみましたがうまくいきませんでした。

[Mia Tamm]

Hi @haruka__minami 👋

日本語が話せなくてすみません。英語で失礼します。

Trello automation doesn't let you bulk change due dates in one step like that. The rule
`"When list 'A' has more than 1 cards..."` only checks the list, not each card.

Instead, I recommend using a Card Button like this:

👉 _"For each card in list 'A', set the due date to August 22, 2025"_

Here’s how:

1. Go to Automation > Card Buttons.
2. Create a new button.
3. Add this action: "Set due date to August 22, 2025".
4. Use the button on each card in list “A”.

If you're on Trello Premium, you can also use “Loop over cards in list” with Butler to do it in bulk.

Hope this helps!

— Mia Tamm from Simpleasyty

[haruka__minami]

Hi, Mia!

Sorry for the late reply.

With your guidance, I could success what I want.

However, I couldn't find enough information on how to use loop up.(I'm on a Trello Premium)

[Mia Tamm]

Hi @haruka__minami

Here’s the direct link to the Bulk Actions section of Atlassian’s official “Create and manage automations” guide, where you’ll find the “For each card in list…” loop described.

And in case you want to see a real‐world example of that syntax in action, here’s the Atlassian Community thread that walks through “for each card in list ‘To Do’…”.

I hope this helps you.

— Mia Tamm from Simpleasyty