Vendor record integration

This section describes the requirements for setting up your vendors.


Requirement	Use case	Endpoints/Models	Type
Vendor codes	Merchants/users must be able to input a case-sensitive and unique vendor identifier field (typically the database key in the vendor master) that maps to the `customerCode` field in Avalara.	N/A	Required
Entity use codes	Merchants/users must be able to input a group of codes that indicate the type of exemption. These can be standard codes and custom codes. It’s best to manage this value in your application’s customer record and pass it to AvaTax as `entityUseCode` at either the document or line level, whichever is applicable.	ListEntityUseCodes CreateTransactionModel	Required