LTI Advantage requires your site to be reachable from the internet. If not, Install ngrok to expose your moodle setup externally. Refer here for additional guidelines As site administrator, navigate to Site Admin > Plugins > Activity Modules > External Tool > Manage Tools In the box that says tool url enter: https://robotest.theedtech.dev/register Click the Add LTI Advantage button The test tool should open with a trace of the communication with Moodle, all should be green (thumbs up). In particular, verify the following sections are present and green: Supported Messages found Deeplinking is supported Resource Link is supported Ignore Yellow warning on previous registration found (expected for fresh installs)