Enterprise Activation failure due to Enterprise Service Policy

Taken from KB10328 - Enterprise activation process stops responding ...

The Enterprise Service Policy allows you to restrict the BlackBerry smartphones that can interact with the BlackBerry Enterprise Server. It does this using the list of approved personal identification numbers (PINs) and other BlackBerry smartphone properties such as model number. Any subsequent attempts to perform an enterprise activation will fail unless the Enterprise Service Policy is updated or disabled.

A BlackBerry smartpone user will see the following error message "Your Account is not authorized for Enterprise Activation"

In the BlackBerry Agent Log, the following log line displays:
[40000] (05/19 15:28:52.397):{0xE24} {ABC@123.com} *** OTAKEYGEN *** sending KEY_ACCEPT transID = 220239464
[35006] (05/19 15:28:52.397):{0xE24} {ABC@123.com} Sending ESP_AUTH_ACTIVATION_REQ command to Dispatcher, PIN=1234ABCD
[30000] (05/19 15:28:52.397):{0xE24} {ABC@123.com} Sending data to Dispatcher, size=303, Tag=50
[40000] (05/19 15:28:52.397):{0xE24} {ABC@123.com} SendToDispatcher, Tag=50
[40583] (05/19 15:28:52.397):{0xE24} {ABC@123.com} Sending packet to device, Size=248, Tag=51, TransactionId=-904724239
[40279] (05/19 15:28:52.397):{0xE24} {ABC@123.com} SubmitToRelaySendQ, Tag=51
[40279] (05/19 15:28:52.397):{0xE24} {ABC@123.com} SubmitToRelaySendQ, Tag=-696931853
[50104] (05/19 15:28:52.569):{0xE24} {ABC@123.com} HandleAuthRespFromDispatcher: User is not authorized for BlackBerry services
[30000] (05/19 15:28:52.585):{0xE24} {ABC@123.com} Sending data to Dispatcher, size=369, Tag=52
[40000] (05/19 15:28:52.585):{0xE24} {ABC@123.com} SendToDispatcher, Tag=52
[40000] (05/19 15:28:52.585):{0xE24} {ABC@123.com} *** OTAKEYGEN *** sending ABORT_TRANSACTION, transID = 220239464

Resolution 1
Disable the Enterprise Service Policy.

1. In BlackBerry Manager, select the BlackBerry Domain.
2. Select Service Control & Customization.
3. Select Disable Enterprise Service Properties.

Resolution 2
Add the PIN and model information for the BlackBerry smartphone that you want to activate to the Enterprise Service Policy configuration.

1. In BlackBerry Manager, select the BlackBerry Domain.
2. Click the Global tab.
3. Click Edit Properties.
4. Under Enterprise Service Policy, specify the PIN, manufacturer, and model number.