| Property | Type | Description | Required or Optional | Available Version |
|---|---|---|---|---|
| accountId | String | ID of the customer's account. | Optional | 55.0 |
| code | String | Customer code. | Optional | 55.0 |
| exemptionNo | String | Tax exemption number. | Optional | 55.0 |
| exemptionReason | String | Tax exemption reason. | Optional | 55.0 |