Namespaces in the BRF 
The following naming conventions apply in the BRF:
For application classes:
SAP namespace:
Application classes of SAP always begin with one of the following prefixes:
0 to 9 (such as 0FLIGHT)
A to W
Partner and customer namespace:
Application classes of partners or customers always begin with one of the following prefixes:
X to Z
Namespace prefix /MY_COMPANY/
For BRF events:
SAP namespace:
BRF events of SAP, like the application classes, always begin with one of the following prefixes:
0 to 9
A to W
Partner and customer namespace:
BRF events of partners or customers always begin with a prefix from X to Z.
For all other BRF objects:
SAP namespace:
BRF objects of SAP always begin with a prefix from 0 to 9.
Partner and customer namespace:
BRF objects of partners or customers always begin with a prefix from A to Z.