Need steps/document in order to download attachments for purchase orders from UCM

Summary:

1)

We have a requirement to download all PO's for 1 particular BU for 4 years (2019 to 2023)

We found a document (km note listed below)which provides the steps and sql queries for invoices attachments download.

Is there something similar for PO's ?

KM NOTE:

How to download payables invoice attachments from UCM using getDocumentForDocumentId method from ERP Integration Service webservice (Doc ID 2550855.1)

2)

Are all PO documents ONLY stored in the table: fnd_documents_tl.dm_version_number

OR are there any other tables where PO PDF attachments are stored when a PO is created in Oracle ?

How do we get the attachment document ID's of all PO's created in the Oracle system?