How often does Products Sync take place from Shopify to Tagalys?

A full Product Sync takes place initially during the installation of the Tagalys app with your Shopify store. 

When a product is created, edited, or deleted from the Shopify store, the changes are sent to Tagalys in the form of incremental sync.  The product updates will take 5 to 10 minutes to reflect on Tagalys.