This is a list of common error codes you may see when trying to send a document to QuickBooks.  If you are unfamiliar with how to do something specific, please refer to help articles or support staff at QuickBooks.  


Error Code
How To Fix
This invoice number already exists in QuickBooks.  Please update or remove the invoice number to sync.
An invoice with this number already exists in QuickBooks.  Please update or remove the invoice number to sync.
This document's date falls in a closed period in QuickBooks. Please open the period or skip this entry. 

The document's date falls in a period marked closed in QuickBooks.  You can either skip this document or open the period again in QuickBooks.

This document cannot be synced with no line items. If line items exist,  please resubmit the document to AI.
We cannot push a document without any line items.  If there are line items on the document that were not extracted, you can resubmit the document to AI to be extracted.
This document has a negative amount and can't be synced. Please correct the amount and try again.
Check the total on the document.  If it shows a negative, please correct to a positive amount.
This invoice number is too long. QuickBooks allows a maximum of 21 characters. Please shorten it and try again. 
You will need to reduce the invoice number to 21 characters or fewer
The vendor, COA or customer tied to this transaction has been deleted in QuickBooks. Please restore it and try again.
Check to ensure that the vendor, chart of account or customer is in QuickBooks and not deleted.  Restore or update the entity in QuickBooks then sync the document again.
We couldn't find the vendor, COA or customer in QuickBooks. Please refresh your account list and try again. 
There is no such vendor, chart of accounts or customer that exists in QuickBooks.  Refresh the account list and try again.  
Your document synced successfully, but the attachment didn't go through. Please try re-attaching the file. 
The attachment was invalid. You will need to upload an accepted file type.  
A line item has been mapped to an unsupported account in QuickBooks.  Please correct the mapping and try again.
There was a line item that was mapped to an unsupported account in QuickBooks.  You will need to correct the account mapping to sync.
Your QuickBooks connection has expired. Please reconnect QuickBooks and try again. 
Your QuickBooks connection either expired or was disconnected.  Reconnect inside clickBACON. 
Your QuickBooks account appears to be locked. Please contact QuickBooks to resolve this. 
This generally happens when your trial has ended or there is a subscription issue.  Please speak with the support team at QuickBooks. 
QuickBooks is temporarily unavailable. Please try again in a few minutes.
QuickBooks was temporarily down or slow to respond.  Please try again later.