# Tracking number

Source: https://developer.avalara.com/avatax-for-bevalc/requirements/tracking-number/

# Tracking number

**Element type: Required**

**Endpoints used:** [TransactionParameterModel](https://developer.avalara.com/api-reference/avatax/rest/v2/models/TransactionParameterModel/), [TransactionLineParameterModel](https://developer.avalara.com/api-reference/avatax/rest/v2/models/TransactionLineParameterModel/)

Your integration must provide a way for users to input the tracking number(s) associated with a direct alcohol shipment. This is done using the`TrackingNumber` parameter. When multiple tracking numbers apply to a shipment, they must be separated by a semicolon (;).

```
"lines": [  {    "parameters":[      {        "name":"Tracking",        "value":"1Z654321MB12345678"      }    ]  }]
```

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