Sales Order Not Syncing to Shipstation: How to Fix Country Code Error and Invalid Data
Delete the sales order from the Sales Order Page.
Go back to CRM > Invoices and edit the invoice for those sales orders that failed.
Check the client's business address if the details are complete:
Fill up the missing data then click save.
5. Save the invoice.
6. It should then automatically create a sales order.
7. Go back to the sales order page and manually push the recreated sales order.