---
page_type: error
code: 20021
message: "20021: Phone number rejected by T-Mobile SDG Service Provisioning API"
level: ERROR
---

## Description

Exception received while creating application address in SDG Service Provisioning API: Invalid short code And enum server status is: FAILURE

### Possible Causes

- The phone number was rejected by T-Mobile SDG Service Provisioning API

### Possible Solutions

- Check the phone number