US, CA, GB), role tiers, and any “if they picked one of these options” branch.
When to choose this
Exact behavior
- Choice fields only (select, radio, checkbox list, tags, country, NPS, dual listbox, etc.).
- You provide a non-empty list of allowed values (multi-chip in Studio).
- Matching uses flexible Equals rules —
"1"matches1. - Multi-select: matches if any single selected option is in your list (not “must pick all listed values”).
- Empty allow-list → never matches (fail-closed).
- Blank answers generally do not match.
Which field types
Blank / unanswered answers
Generally does not match. Null/empty/[] will not equal normal choice values. Use Is empty for the skipped path.
Configure in Studio
1
Open a rule
Logic → Rules, or Branch / Add condition on a field.
2
Pick a choice field
Country, Role, Plan, Tags, etc.
3
Choose Is any of
Choice family operator.
4
Add option chips
One or more values —
US, CA, GB, …5
Add Then actions
6
Test each chip and combinations on Fill
Multi-select: one match in list should fire rule.
Worked examples
English legal copy
When Country is any ofAny one of the three countries triggers the block.US, CA, GB→ Then Show blocksEnglish terms
Staff roles
When Role is any ofEditor, Admin, Owner→ Then Show blocksAdvanced settings
Priority support tier
When Plan is any ofPro, Enterprise→ Then Show blocksDedicated support
Tags include beta
When Tags is any ofOn multi-select, selecting either tag matches.Beta, Early access→ Then Require answerFeedback email
Test on fill
1
Pick one listed option
Rule on.
2
Pick unlisted option
Rule off.
3
Multi-select: one listed + others
Rule on.
4
Leave empty
Rule off.
Common mistakes
- Using Is any of when all listed options must be selected — use Includes every of.
- Using for exact set with no extras — use Equals set.
- Block-list instead of allow-list — use Is none of.
- Empty chip list in Studio — clause never matches.
Troubleshooting
Rule never fires
Rule never fires
Option values in rule may not match stored values. Confirm chips match option configuration.
Multi-select too permissive
Multi-select too permissive
Is any of is OR semantics — switch to Includes every of or Equals set if too broad.
Operator missing
Operator missing
Field is not choice family — use Equals or text operators.
Need opposite list
Need opposite list
Use Is none of with same chip list for block-list logic.