The California legislature passed the CCPA in June 2018. Businesses that are subject to the law must comply by January 1, 2020.
The California Attorney General (AG) might start enforcing the law on July 1, 2020. The AG might also issue more guidance on how to comply with the law in 2020.
From January 1, 2020, consumers have the right to request information about where their personal information has been sold or disclosed for the previous 12 months. Consider gathering documentation about where you have sold or disclosed information from January 1, 2019 onwards.
For a timeline graphic, download Shopify's CCPA whitepaper (in English).