How customers reach Odoo
When a customer is created in Odoo, what is carried over, and the alternative that creates none at all.
When the customer is created
A customer is created in Odoo when the "customer created" event arrives from Salla, or when their first order is processed if they do not exist yet. The data carried over is the name, contact details and address.
The alternative: one shared customer
If you turn on use one customer on the Customer tab, no customers are created in Odoo at all. Every cash-on-delivery order is posted to one customer and every online-paid order to another.
Which to choose
A contact per buyer if you want a statement per customer, track receivables, or analyse sales by customer.
One shared customer if you run a high-volume retail store and do not want thousands of contacts in Odoo. This is the more common choice for retail.
The choice is not retroactive
Changing the approach affects new orders only. Invoices already issued to the shared customer stay there, and customers already created stay in Odoo.
Open Customer Error
The link opens the screen directly in the Integration Dashboard.