When using the new ON_ARRIVAL functionality for FileSourceCollections in v7.8 of the C3 Platform, beware of special characters in your S3 file path. Any special characters, e.g. “$”, need to be url encoded in the S3 Event Prefix to be handled appropriately by AWS. The C3 Platform does not currently handle this for you and the Event Prefix will need to be manually updated once created.
For example, “TEST/Folder$/inbox” will need to be updated to “TEST/Folder%24/inbox”.