Choose which Centra market an account gets, based on the company's country in the other system.
Each row connects:
a country, and
a Centra Market.
Good to know
The market for new accounts in general is set in Default Centra Market.
The Centra markets come from your Centra. If the list is empty, check that Centra is connected. An empty list almost always means the connection, not the setting.
If a value is missing, create it in Centra first, then click Clear Cache on the settings page so the list is refreshed.