Teresa

Sorry, I'm looking for the same answer. One key point is that I don't want to manually create the SO number, so Odoo assigns one automatically. This may be the same case for you. If not, try creating manually the SO number in the excel you are uploading, and then leaving blank everything but the order_line fields.

Hope this helps.

Hi,

Try this method to import,

1. Log in to your Odoo and go to the Sales module
2. Now under the "Orders" tab go to the Sale Orders and click on the Import button
3. After that upload the file;
4. Click on the "test import" to validate
5. When it is successfully validated then click on the import button

For more information please refer to this blog: How to import data in Odoo

Hope it helps.