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If you see a submission with this error (Failed to execute: Missing Resource: Not Found: itemNotFound -- The resource could not be found) or similar near the end of the page, then there is likely a field that is not completely filled out on your Sharepoint or Google destination configuration.
You will see under the fields section in your Sharepoint or Google destination that information was only put under "unique key", if it is not filled out entirely, this will cause an error when the form is submitted.
Complete all the fields and ensure there is nothing blank, then the submission should go through after fixing this and re-executing.