Before you can scan a document to SFTP or SMB, you must configure the app using App Gallery configuration. When you install the app for the first time, you’ll be prompted to enter SFTP and SMB details, such as hostname, port number, username, password, and a root folder. Providing this information is optional. If you leave the SFTP fields blank, SFTP will be disabled and hidden in the app. The same logic applies to SMB. 

SMB and SFTP can be configured after you install the app, too. Simply sign into App Gallery, locate and click Scan with Print, and click the Configure button next to the app’s icon.