If you install the MyStore app from the Shopify App Store, first you need to do is populate MyStore inventory. Until your Shopify inventory and the MyStore inventory match, you cannot sync orders and stock.
MyStore simplifies the products transfer from Shopify. You can import products with all variants with just a few clicks. Thus you can get around complicated exporting to CSV and its next importing.
During the initial import, products are transferred with zero stock level. If you don't turn off stock syncing between MyStore and Shopify, your stock level at Shopify will also become zero.
- In the Stock section, turn off Push stock to Shopify.
- In the Products section, click Pull Now.
You can view imported products on the Products and Services tab of the Inventory section.