when trying to create indecent from REST mobile interface its throwing BAD REQUEST error.

Unable to Create a ticket from Mobile interface.

Error :  ErrorBad Request error.

This Problem happens only when Activity_log_security option is to Write Protected[WRITE_NEW].

Steps to reset the value .

Step 1. Login to CA Service Desk Manager User Interface
Step 2. Administration tab
Step 3. Option Manager
Step 4. Request-Change-Issue
Step 5. Edit "Activity_log_Security
Step 5. Select the Option Value from  Write Protected  [WRITE_NEW]   to  Editable [PUBLIC]
Step 6. Recycle CA Service Desk Manager Services from Windows "Services.msc"