Hi Gabriel,
Is the partner, an internal partner or an external partner. If external; they won't have access to your file share as that would be a huge security no no. If internal; then its possible to develop a custom protocol to deliver the files to the file share. There are two ways - one, either mount the file share on the Sterling File Gateway server and then use the File System Adapter in the custom protocol. Secondly, we have used a third party SMB3 library in a custom Java Task to deliver to remote file shares without the need of mounting it.
Regards
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Vivek Mittal
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