Make errors / Schema
Collection can't be converted to text for parameter 'value'
Cause
A field expecting plain text is receiving an entire collection/array - the mapped variable points to a parent collection instead of a scalar field within it.
Fix
Expand the mapped variable and select the specific child field (e.g. item.name not item). If the upstream returns an array, use map() to extract the scalar field or join() to flatten to a string before passing it on.
Part of the Automation Error Index — Make errors: browse all.
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