What is the File Attachment Size in Intelligent Advisor (OPA)?
Intelligent Advisor (OPA) cannot currently handle attachment sizes bigger than 50MB combined in a single interview. If the individual attachment size is increased from the 10 MegaByte default (you can contact Oracle customer support to request approval for the adjustment of this size), that will then reduce the total number of max-sized attachments accordingly.
For example: Currently 5 x 10MB attachments are permitted. If this were increased to 20MB, at most 2 x 20MB + 1 x 10MB attachment would be permitted.