Error 0x803E020A

Value: -2143419894 | 0x803E020A | 2151547402

What does it mean ?

WPN_E_GROUP_ALPHANUMERIC  
The notification group is not alphanumeric.
Value: 522 | 0x020A | 0b0000001000001010

Where does it come from ?

FACILITY_WPN  
Notification Platform
Value: 62 | 0x03E | 0b00111110

Other Errors for FACILITY_WPN