JUMP TOKontempo Merchant APIBuyersGet buyer via external buyer idgetGet Buyer StatusgetGet Buyer Onboarding StatusgetUpdate Buyer' External Buyer ID using buyer account id.putUpdate Buyer' External Buyer ID using current external id.putInitiate Buyer User Login via PhonepostVerify Buyer User Login via PhonepostInitiate Buyer User Login via EmailpostVerify Buyer User Login via EmailpostCheckoutCreate checkout sessionpostOrdersValidate orderpostCreate orderpostGet ordergetGet order by external order idgetUpdate order statusputUpdate order external IDputUpdate order amountputReceiptsGet ReceiptsgetGet Receipts by BuyergetGet Receipts by BuyergetGet Receipt by PkeygetNotesGet NotesgetCreate NotepostUpdate NoteputDelete NotedeletePayment LinksSend payment linkpostCreate Payment LinkpostFind Payment LinkspostUpdate Payment LinkputGet Payment LinkgetDelete Payment LinkdeleteGet Payment LinkgetPowered by Update Buyer' External Buyer ID using buyer account id.put https://partners.kontempo.io/v1/buyers/external-id/{buyer_account}Endpoint for updating external_buyer_id.