Power Automate errors / Schema
OpenApiOperationParameterValidationFailed. The API operation does not contain a definition for parameter 'item/<FieldInternalName>'.
Cause
A flow action references a SharePoint/connector field by an internal name that no longer exists or was renamed, so connector schema validation fails.
Fix
Open the failing action and remove the unrecognized field mapping. Re-add the column using its current internal name from SharePoint list settings. If the column was deleted, recreate it or remove the reference. Save and re-run.
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