So there are two ways to do this:
- You have a file saved search export, then a file lookup step that gives you a blobKey, then an import step to your destination system where you use the blobKey and the "Transfer files" import type. See an example here: NetSuite File Cabinet to SharePoint Doc Library - #5 by tylerlamparter
- You already have the base64 version of the file like you do, but you don't use the "Transfer files" import type and instead use the "Record" import type. The "Transfer files" import type is only used when you have a blobKey from a prior step.
Both options are valid, but option 1 is recommended because it would support any file size. Option 2 only supports files where the base64 version of the file fits on a single page, and since the page size limit is 5 MB, that's how large your file could be. Typically, a base64 version of a file is 30–50% larger than the raw file.
