# Map materials/products to Avalara T/S pairs

Source: https://developer.avalara.com/products/communications/integration-guides/communications-integration/ifn1428574132404/

Guide: Communications

# Map materials/products to Avalara T/S pairs

**Element type: Required**

**Endpoints/models used:** N/A

AFC provides a number of available transaction type/service type (T/S) pairs. Your integration must allow users to map their own individual materials and products to these Avalara type/service pairs. This task is handled through your environment backend and not directly via an AFC API call.