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Why is my API populating the origin address the same as the destination address when left blank?

Overview

You see that transactions submitted via the API show the same address used for both origin and destination in all transactions, and that the address is the destination address for the customer.

Environment

Avalara API

Resolution

  • When calculating tax via a custom connector (API), if the origin or destination address is left blank, the service will automatically use the supplied address in the filled fields for both addresses: 
    • If destination is left blank, but origin is filled in, destination address will use the origin information
    • If origin is left blank, but destination is filled in, origin address will use the destination information