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In the "Data books" tab within the system adminsitration, you can view and add your couriers.
When choosing the "Delivery by courier" delivery type in the order, you will be able to choose from a list of couriers that have been specified by you in the data books section.
Setting up invoice statuses
The "Invoice statuses" section is required to set up correspondence between invoice statuses and payment statuses when integrating with acquiring modules.
Creating units of measurement
Units of measurement that are available for selection in the product card. Units of measurement can also be transferred when uploading a catalogue.