Choose the Centra warehouse whose stock is included when products are exported from Centra.
It is used:
as the default stock when products are exported, and
as the warehouse when Multiple warehouses on Centra? [EXPORT products from CENTRA] is not used.
Choose from the list – it shows the warehouses in your Centra.
Good to know
If you leave it empty, no stock is exported. Stock is usually synced in a separate flow.
If the list is empty, check that Centra is connected. An empty list almost always means the connection, not the setting.