What it is
MerchandiserOS is not an ERP. It plans, estimates, and requests; your ERP records money and settles payment. The priced purchase order is issued here or in your ERP, depending on how your factory is set up. The seam consumes commercial terms as gates — a payment milestone, an LC expiry — never as amounts stored here.
How to use it
Map your buyers, suppliers, materials and styles to their ERP codes in Settings → Integrations → ERP. The app produces purchase requests and export documents your ERP consumes; the ERP owns the money-line. Payment dates and the ERP's purchase-order numbers can be imported back by file, or an ERP that can call a web API gets its own integration login — whatever it sends lands on a review list and changes nothing until a person approves it. Integration configuration lives in Settings only, never on the order screens.