Author, A. A. (year). Title. Name of the learning management system https://xxxx
Link to the online learning management system.
If no year can be identified, write n.d.
Zetterlind, M., & Keller, C. (n.d.). Online research methods. Canvas. https://canvas.ju.se
This type is usually treated as "Personal communication" and is only cited in the text. No reference is created. Fictitious examples: