Dear Tokunbo,
The list of VAT-exempt goods and services is dynamic and subject to periodic updates. The GetVatExemptions API is designed to help you pull the current list at regular intervals to ensure compliance.
Each exemption is tied to a product or service code, which must be mapped correctly in your invoicing system. When generating an invoice, if an item qualifies for exemption, you should mark that line as VAT Exempt. The Tax Admin System will then validate it against the exemption list.
In summary, the API output should be integrated into your invoice creation workflow as a reference dataset, ensuring that only valid exempt items are flagged as VAT exempt at line-item level.