Nuxeo can be integrated with SAP. SAP doesn't scale correctly big volumes of documents, that's why it can be relevant to store documents in Nuxeo and reference them in SAP. Some critical projects based on Nuxeo did implement such an integration, for instance for invoices flow management between Nuxeo CMF and SAP, with documents and financial data exchange.

Technical solutions can be:

• Archive Link: SAP provides a “standardized” (in SAP world) way of exchanging document ids for external archiving. https://help.sap.com/saphelp_nw70/helpdata/en/5e/566039b85f9443e10000000a114084/frameset.htm
• Batched exchanges, using io modules of both SAP and Nuxeo with a pivot format. (maybe the simplest)
• Real time java connection through SAPJCO connector
• Integration throughout SAP webservices