File Upload Size Limit

Question

Is this configurable? What is it currently?

Mike Schmitt · Answer

I don't remember there being a system-side limit, as Appian can handle any file size that has any realistic chance of being successfully completely uploaded by an end-user before connection interruptions or timeouts occur (i.e. a few gigabytes). 
 Are you hoping to make a max size? This is trivially easy to do by way of on-form validations, IMHO.

Mike Schmitt · Answer

None that I know of. I'm fuzzy on the back-end mechanics but my theory is that, unlike file extension, Appian has no particular visibility into the size of a file fed into its file upload field until the upload has completed. At that point it's effectively too late to have a preemptive size limit (in the same vein that the extension requirements work per my limited understanding); and then it may as well be left up to designers to implement a systemwide size validation of their own design, and internally require everyone who uses a file upload field to include that global validation rule within their field validations. Again just conjecture on my part. 
 In any case -- I'd suggest if you have a strong use case for a max upload limit (i.e. configured in Admin Console next to the extension whitelist/blacklist), you submit it as a feature request with Appian.

jamesm881 · Answer

This link may also be useful: https://community.appian.com/discussions/f/general/10314/max-document-size-for-processing#:~:text=4%20years%20ago-,By%20default%2C%20the%20maximum%20file%20size%20allowed%20for%20upload%20into,properties%20with%20the%20resources 
 
 Appian has a ~1GB limit. There are ways to change that limit for on-prem implementations, though it is not recommended.