The industry is managed by the Health Canada government agency. They maintain a [https://www.canada.ca/en/services/health/campaigns/cannabis.html cannabis specific page
Legalized on October 17, 2018 through the the Cannabis Act.
Each province and territory may have their own rules
Track and Trace
There is no real-time government run database like exists in some jurisdictions in the USA. Licensed business simply report monthly via CSV upload.
All packages will have a valid excise stamp and carry a standardized symbol.
Third Party Integration
There is no centralised system to integrate with, therefore: there are no APIs to learn. Any software that can produce the necessary CSV formats will suffice.