Power Automate errors / Schema
ExpressionEvaluationFailed: the result of the evaluation of 'if' condition expression is not boolean
Cause
An expression using dynamic values fails at runtime because the actual data is a different type or null — something the engine cannot catch at save time.
Fix
Open the failed run, select the action, and inspect Inputs for the actual value. Guard null-prone references with if(empty(...)) or coalesce(). Validate types before conversion (e.g. isInt() before int()). For dates, pass an explicit format to formatDateTime()/parseDateTime().
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