Let me direct you to the best help available to assist you with using the Spreadsheet sync, Elmer.
We have a dedicated support team to help you with any technical issues related to spreadsheet sync. I recommend contacting them, as they have the tools to investigate and provide assistance with this matter.
To connect with them, please see this article: Frequently Asked Questions about Spreadsheet Sync in QuickBooks Online Advanced or Accountant.
Alternatively, you can also reach out directly to your IT department or Microsoft support to further assist you with the error you're encountering.
Additionally, to securely send your budget info between QuickBooks and your spreadsheet for up-to-date company insights, feel free to follow this material for guidance: Create and edit budgets in Spreadsheet Sync for QuickBooks Online Advanced.
Feel free to get in touch below if you have additional concerns about spreadsheet sync or any other QuickBooks-related concerns.
