What is the Purchase Register?

The Purchase Register records purchase and purchase adjustment documents for VAT and accounting. You submit document register requests with entry_type PURCHASE or PURCHASE_ADJUSTMENT and document_type INVOICE or CREDIT_NOTE.

When to use this API

Use the Purchase Register API when:

• You need to register a purchase invoice

• You need to register a purchase credit note

• You need to record a purchase adjustment (for example corrections or background adjustments)

How the Purchase Register API works

When a purchase register entry is created through the API:

1. The request is validated (mandatory fields, dates, amounts)

2. Supplier and customer party data is stored

3. The entry is recorded in the document register

4. The document is available for VAT and accounting reporting

Entry types (Purchase Register)

Document types (Purchase Register)