Hi,
- do we have any limitation for attachment? No. there are no such limitations for attaching external documents with a Purchase Order.
- what potential risks are involved using this functionality? None apparent
- Will the transactions/SAP performance be impacted? No if SAP DMS is used.
- when do we need to go for DMS? Yes you will need to go for DMS. you may attach documents in DMS (Tcode CV01N) and link this with your Purchase Order