How to Remove/Unselect option in Multi-Select Custom Field using a Rule

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1

Currently, the only options when creating rules on multi-select custom fields are:

  1. Add to (i.e. Select) X option of Multi-Select
  2. Clear Multi-Select (entirely)
  3. Set (change multi-select to only have X, Y, Z selected)

It seems as though there is an option missing - Remove from as the counter to Add to.

Is anyone aware of a work around?

2

FYI this is available using the rules in our Flowsana integration:

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3

Thank you Phil! Good to know. I need to check with our IT Team, but I believe they are disabling integrations/add-ins due to internal policies.

4

Totally get why you’d expect a “remove from” action here, it feels like the natural pair to “add to.” Right now rules for multi select don’t support removing a single option, only Add to, Clear, or Set.

Workarounds I use:

If you know the final state you want, use Set to overwrite the field with the exact options that should remain. This is the most reliable.

  1. If you need to “unselect” as part of a cleanup, create a helper checkbox field like “Reset tags,” then have a rule that clears the multi select and adds back the options you want. You do have to spell them out.

If the options vary a lot per task and you need true “remove one option” behavior, the Asana API can do this, but it’s not available in the rule builder today.