You're developing a user input form for a government services application that includes a file...

Use the out-of-the-box Appian Connected System, but since it does not have any pre-built connected systems, you will need to use either a HTTP or OpenAI Connected System to connect with SharePoint.

Develop a connected system plug-in given SharePoint has an extensive API that cannot easily be resolved using the Appian out-of-the-box Connected System.

Use the out-of-the-box Appian Connected System as it has a pre-built connected system to SharePoint to provide a guided experience for designers to send and receive data.