Hi @Electrician
If you need to upload attachments into QuickBooks Online in batch from your desktop then can recommend that you have a look at an app called Zed Axis that you can find in the Intuit Marketplace, this could be the solution you are looking for.
You would need to have your data arranged as follows:
| File Path | Note | Entity Type | Doc Number |
| C:\Users\Public\Documents\MyAttachment1.pdf | Picture of the red widget | Invoice | 1001 |
| C:\Users\Public\Documents\MyAttachment2.jpg | Picture of the green widget | Invoice | 1002 |
| C:\Users\Public\Documents\MyAttachment3.doc | My attachment 3 | Bill | 99889 |
| C:\Users\Public\Documents\MyAttachment4.jpg | My attachment 4 | Bill | 47479 |
