TaxJar Sales Tax Automation

Shopify collects CA taxes at a modified origin rate. However, TaxJar is only able to autofile CA sales tax as Destination sourcing which completely defeats the whole purpose of doing auto-file with TaxJar if the numbers Shopify collected is going to be totally off from what TaxJar is going to pay. Recently TaxJar paid out over $500 extra that I didnt even collect in Shopify. TaxJar needs to figure out how to setup destination sourcing for their autofile.