1. Click on the Lock User Management SmartApp, it will open a new window with the code, select the entire page (Ctrl+A) and copy (Ctrl+C)
2. Login to the IDE at http://ide.smartthings.com (create a Samsung Account one if you don't have one)
3. Click on "My Locations" and then click on the name of the location where you want to install LUM
   
4. Click on "My SmartApps". If you see Lock User Management  already installed, skip to Step 9
   
5. Click on "+New SmartApp" on the top right 
   
6. Click "From Code" 
   
7. Paste the code (Ctrl+V) copied from Step 1 into the editor and click "Create" 
   
8. Click "Publish" and then "For me" on the top right
9. To install LUM use either of these ways:
• SmartThings web browser app -> login here and click on the + icon on the top right corner of the screen -> click on "Add SmartApps"
            OR
• SmartThings mobile app -> open the mobile app and click on the + icon on the top right corner of the screen -> click on "Add Routine" -> click on "Discover" -> Scroll down to SmartApps
10. Scroll down until you see "Lock User Management" and click on it and tap "Done" to install it. (NOTE: if you don't see it listed, then you may have installed the code in the wrong location, check step 3 again)
11. After installing LUM, configure/open it using either of these ways:
    • SmartThings web browser app -> login here and click on "Automations"
               OR
      
    • SmartThings mobile app -> click on the "Automations" tab at the bottom of the app and then look for the "SmartApps" section
12. Click on Lock User Management to configure it:
    
• Select ALL the locks you want to use, do NOT change this thereafter. You can select locks for each user on their individual pages.
• If additional users are required, change the number of users
  
• Click on Manage users to review/change individual user settings. Click Next/Done to return to the main page
• Click on other pages like notifications etc to customize your settings
• Click Done/Save
• Code programming should start within a minute or so. See the LUM FAQ's page for tips and answers to common questions

NOTE: To open/configure LUM in future see Step 11

• Click on the Lock User Management SmartApp, it will open a new window with the code, click on the browser refresh button (to flush the cache), select all (Ctrl+A) and copy the code (Ctrl+C)
• Login to the IDE at http://ide.smartthings.com
• Click on "My Locations" and then click on the name of the location where you had installed LUM previously
  
• Click on "My SmartApps"
• Click on "Lock User Management" in the SmartThings IDE
• Select all (Ctrl+A) and delete the old code, Paste (Ctrl+V) the new code
  
• Click on "Save"
• Click  on "Publish" and then "For Me", if you don't do this the update won't work