Why does UrlFetchApp.fetch submit blank Google Form responses despite using accurate pre-filled URLs and valid field IDs?

"Why are Google Form responses blank when using UrlFetchApp.fetchwith accurate pre-filled URLs and valid field IDs?"

There are a few potential reasons why Google Form responses might be blank when using UrlFetchApp.fetch with accurate pre-filled URLs and valid field IDs:

Timing Issues: The script might be submitting the form before the pre-filled data is fully loaded or processed. Ensure there is a delay or check to confirm the data is ready before submission.

Incorrect Payload Format: Verify that the payload format is correct and matches what the form expects. The payload should be properly structured as form data or JSON, depending on the form's requirements.

Form Configuration: Check the form configuration to ensure that it is set up to accept submissions via URL fetch and that there are no validation rules or settings causing the form to reject the submission.

API Changes: Ensure that there have been no recent changes to the Google Forms API or the way UrlFetchApp.fetch handles form submissions that might be affecting the behavior.

Error Handling: Implement error handling in your script to catch any issues during the submission process and log detailed error messages for troubleshooting.

By addressing these potential issues, you should be able to identify and resolve the cause of the blank responses in your Google Form submissions using UrlFetchApp.fetch.