Let me help you import invoices from another app, sarahnolan-dance.
We can download a CSV file of invoices from your app and manually import them. I'm here to help you accomplish this.
- Go to the Gear icon.
- Under TOOLS, select Import Data.
- Choose Invoices.
- Click Browse.
- Find and open the CSV file of your invoices.
- Map the fields accordingly.
- Select OK.
- Press Done.
You can check out this article for more details about importing your invoices in batch: Import multiple invoices at once. Also, I'd still recommend contacting the technical support of your app provider to check if they have an integrated way of importing your invoices. In case you encounter duplicate transactions, you can refer to this article for the steps on how you can fix it: Void or delete transactions in QuickBooks Online.
Lastly, I've also included this helpful article in case you wanted to import other lists to QuickBooks: Move your lists to QuickBooks Online.
I can assist you with other tasks and processes in QuickBooks Online. Just leave your questions or concerns here and I'll answer them.