In the menu bar, navigate to IDoc > Print IDoc . This converts the tree-structure data into a flat ALV list format.
In the pop-up, uncheck the box "Start inbound IDoc processing of file now" to ensure you only save the file without triggering new processing. sap transaction to download idoc content
To get the technical XML payload of an IDoc (useful for debugging or web-service integration), you can use a standard function module. How Can You Save an IDoc from SAP on Your Hard Drive? In the menu bar, navigate to IDoc > Print IDoc