If you want the document to hit Paperless Office if it is enabled, then you should use ProcessReport("PRINT") along with setting all the prerequisites in detailed in the thread you linked, alternatively, you can specify your own export options if you use ProcessReport("EXPORT").  See this thread for more info.

https://www.sagecity.com/us/sage100_erp/f/sage-100-business-object-interface/78293/export-report-using-boi/231272#231272

If you or the users who entered the order let it hit Paperless Office, then you could read the AR_CustomerPDFLog file for the target company and filter it to the sales order.  The file contains a Directory field and a Filename field which you can use to attempt to retrieve the file if it is accessible.

Thanks David, really appreciate your response.

You mentioned sales orders in the comment, does all of this apply/work the same for quotes?

Assuming you are referring to quotes entered in Sales Order Entry, then yes.  They all use a value in the SalesOrderNo field as the primary key.

If you are processing one order at a time to export, I recommend using the QuickPrint property of the printing object, which is detailed in one of the threads.

Assuming you are referring to quotes entered in Sales Order Entry, then yes.  They all use a value in the SalesOrderNo field as the primary key.

If you are processing one order at a time to export, I recommend using the QuickPrint property of the printing object, which is detailed in one of the threads.