I have published 2 short videos on the integration of SAP BTP Document Management Services with SAP Build Process Automation.
The first video explains how to connect DMS to SAP Build Process Automation, so that the File widget is available to add to forms.
The second video explains how to add the File widget to a form, how you can add an uploaded document to another form, how the document is represented by a text string (this is important when connecting to automations), and how the document is stored in the DMS repo.
These videos are follow-ups to the 3 Tech Byte videos on setting up DMS, and explaining the 3 forms of DMS: Integration, Application and Repository options.