Thank you for the answer, Rizwan! What about purchase requisition data?

Hi,

When it comes to the purchase, you can gather information from purchase.order and purchase.order.lines. The purchase.order.lines will provide detailed information about the products, including their costs, quantities, tax details, and more. The purchase.order will specify the vendor.

For invoices, you can refer to account.move and account.move.lines. Similarly, account.move.lines will contain details about the products or services rendered, while account.move will include customer or vendor information.For payments, you can refer account.payment table. 

For Payments, it will be account.payment

Thanks