We have business requirement states that user will upload (up to ~1024 MB) and download attachments/ files (up to ~250 MB each).

Currently, I'm using Pega 25.1 Constellation and configured OOB Attachment Widget to perform upload and download attachments. It appears to be upload seems to be working OK however, when I tried to download the file, am getting an error saying "an internal occurred".

When I trace the sequence of events, observed that Data-WorkAttach-.pzGetAttachment  (final rule) passes param.responsemode as string which causes the problem (refer the attached screenshot). I would expect responsemode as stream / bytes to handle larges files download but it is not in the Pega OOB activities (final rules)

Note: We are using PegaCloudFileStorage repository configured in the Application rule definition.

Could you please advise what are the alternatives available to resolve this issue via Pega OOB way?

Many Thanks