The Amazon S3 Account Setup step appears just before Finish when you choose to save files to Amazon S3: Amazon S3 in Select a Cloud Storage Type (Exact Forms Plus, XL Docs, PDF Stamper), in Select a Cloud (Document Portal), or as a storage location (JuicedSign).
For what to enter on the step and how to get your Amazon S3 credentials, see Amazon S3 setup.
Note
To change your saved access key or secret key, a Client Admin can use Client Credentials in the Extensions Portal—see Update your access key after setup. If you need to change your saved S3 bucket or region, submit a technical support case.