3774541 - Purchase order fields missing in invoice summary pdf output

In the app Manage Invoice Summary, the consolidated invoice PDF includes line item fields for purchase order data, but these fields are not populated for standard accounts receivable documents.

What type of data should be created in order for data to be populated in line items that contain purchase order line item references?

SAP S/4HANA Cloud Public Edition.

Manage Invoice Summary, F1774, consolidated invoice, purchase order fields, pdf output, define line items for invoice summary , KBA , FI-LOC-FI-JP-IVS , Invoice Summary , Problem