Step 1: Add Lumen OHM as a new external LTI application in Canvas
Go to Course> Settings > Apps > View App Configurations > Add App:
Configuration Type: Choose "By URL"
Name: Enter "Lumen Learning"
Consumer Key: Enter your key (provided by Lumen)
Shared Secret: Enter your secret (provided by Lumen)
Config URL: Enter this url - https://goldilocks.lumenlearning.com/lti/xml_config?domain=lumenlearning.com
Step 2: Select Submit