Hi technician
I've created my module base on tutorial on your site but after install finished I've tried back to Apps, however there is no link or icon to access to my module. I also tried to add my module to menu by Menu Item (Technician feature) but it's not working.
I've tried on Odoo 11 then impressive Module work as well !
Regards
Did you create access rights for your model? Your question is similar to this >> https://www.odoo.com/forum/help-1/question/new-module-not-showing-141084
For creating a new custom module in odoo12, please have a look at this: https://www.cybrosys.com/blog/how-to-create-module-in-odoo12
Odoo Development Tutorials: https://www.youtube.com/watch?v=BDepk0LhVuI&list=PLqRRLx0cl0hoJhjFWkFYowveq2Zn55dhM&index=3