Power Automate errors / Schema
InvalidTemplate. Property selection is not supported on values of type 'String'.
Cause
An expression like item()?['property'] is applied to a plain string instead of an object, often because the dynamic content comes from a different level of the response than expected.
Fix
Inspect the actual action output in run history to confirm the data shape. Adjust the expression to the correct property path (e.g. body('Action')?['value']?['property']). When iterating, ensure the Apply to each input is the array, not a single string element.
Part of the Automation Error Index — Power Automate errors: browse all.
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