These items are needed for the file uploads to work correctly. The SSM also requires configuration settings to store uploaded files on a customer-provided S3-type server. These are the recommended settings for the production server to allow file uploads to the SSM for LDP forms. The recommended settings should at least allow 7 different file uploads to occur for one given form submission. You can increase them or decrease them as desired but this will change the number files that can be uploaded per submission to a different number.
Recommended MaxRequestLength is: 200000
Actual MaxRequestLength is: 4096 - under recommended value