We've got a client looking to use Shopify as the front-end to their longstanding ERP. In their use case, customers have multiple addresses, some of which are tax exempt for reasons controlled by them manually. They want to use a tax automation platform, but have the ERP tax rules for their customer address used for exemptions.
Is there a way to customize Shopify so that checkout tax calculations can be intercepted with new logic, ideally alongside an Avalara or Taxjar integration?
Thanks in advance!