You simply need to add another filter condition to only continue if there are results from the search module.
Have you seen these previous discussions?
Your question may already have answers here:
- Missing value of required parameter ‘rowNumber’
- Google Sheets: Missing value of required parameter ‘rowNumber’
- Google sheets Missing value of required parameter ‘rowNumber’. Error
- Missing value of required parameter 'rowNumber
- Google Sheets - Update a Row is not recognizing rownumber and will not update Google Sheet
- BundleValidationError Validation failed for 1 parameter(s). Missing value of required parameter ‘rowNumber’
- Update a Row after Search Rows + Iterator throws missing rowNumber error
- Resolving a google sheets error
- etc.
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