VUK 507 Services
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VUK 507 services cover standard transactions performed via physical POS devices, including sales, refunds, voids, and end-of-day operations.
This structure operates independently of e-invoice processes and is based on the traditional POS payment flow.
The following operations are covered in this section:
Payment (Sale)
Refund
Void
Transaction Query
Refundable Transaction Information
Partial Payment
End of Day
OAuth2-based authentication is used for all service calls.
Authorization: Bearer {access_token} Content-Type: application/json
Note: The access token is obtained during the Login step and is mandatory for all service requests.
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