Russia has a Law on the Protection of Personal Data (hereinafter referred to as the Law). According to the Law, personal data of Russian citizens must be placed in Russia.
Shopify servers are not located in Russia yet. But it is possible to comply with the requirements of the Law if the data is first recorded on servers in Russia and then can be transferred to servers in other countries.
It is possible to fulfill this requirement. To do this, you need to modify the cart page and the buyer's personal account. The purpose of the modification is to record personal data first on the Russian server and then on the Shopify servers. The arguments are detailed in an opinion ordered by Microsoft to a law firm on the use of foreign servers for storing personal data of Russian citizens.
To store the personal data of Russian citizens, it is proposed to use the Yandex.
There is an application that will ensure the recording of personal data and information about the composition of the order on Yandex servers. Access to the accumulated data will be through the Shopify admin section.