Hi,
Since Odoo sometimes changes field names depending on version, the best approach is to export an existing payment first, then use that as your template.
1- Go to Accounting → Customers → Payments (or Vendors → Payments).
2- Switch to list view, select one or two existing payments.
3- Click Action → Export.
4-In the export wizard, choose fields like:
-Payment Type
-Partner Type
- Partner
- Journal
- Amount
- Payment Date
- Payment Method
- Memo / Reference
5- Export to Excel or CSV.
Now you have an exact template with Odoo’s field names. Just clear the data rows and replace them with your own customer/vendor payment details. Then re-import the file via Favorites → Import Records.
This way, you don’t risk typos in field names and you know the format matches your Odoo 18 setup
Hope it helps