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iif implementation doesn't support 1 or 2 parameter #14234

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2 changes: 1 addition & 1 deletion docs/pipelines/process/expressions.md
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Expand Up @@ -332,7 +332,7 @@ Counters are scoped to a pipeline. In other words, its value is incremented for
::: moniker range=">= azure-devops"
### iif
* Returns the second parameter if the first parameter evaluates to `True`, and the third parameter otherwise
* Min parameters: 1. Max parameters: 3
* Min parameters: 3. Max parameters: 3
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Copilot AI Apr 21, 2026

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The doc currently states the arity as separate min/max bullets, but doesn't explicitly say that iif requires exactly three arguments (condition, trueValue, falseValue). Consider rewording to make the restriction unambiguous (e.g., 'Exactly 3 parameters') to reduce future confusion and avoid readers interpreting this as a general min/max guideline rather than a strict requirement.

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* Min parameters: 3. Max parameters: 3
* Exactly 3 parameters: condition, trueValue, falseValue

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* The first parameter must be a condition
* Example: `iif(eq(variables['Build.Reason'], 'PullRequest'), 'ManagedDevOpsPool', 'Azure Pipelines')` returns 'ManagedDevOpsPool' when the pipeline runs in response to a PR.
::: moniker-end
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