Installation and Upgrade > Windchill ESI > Installing and Configuring Windchill ESI in an SAP Environment > Creating ESI User Accounts and Configuring SAP for Windchill ESI > Configuring External Number Ranges for Parts, Documents, CNs, Process Plans and Resources
  
Configuring External Number Ranges for Parts, Documents, CNs, Process Plans and Resources
If you would like to change the out-of-the-box SAP external number ranges listed in the following table, make sure that the Windchill PDMLink object number schemas correspond with the external number ranges specified. For information on how to configure object numbers in Windchill PDMLink refer to the Windchill Business Administrator's Guide.
Object
Internal Range
External Range
Parts
1 to 99,999,999
100,000,000 to 199,999,999
A to ZZZZZZZZ
CNs
00,000,000,000 to 999,999,999,999
1 to 499,999,999,999
Documents
10,000,000,000 to 9,999,999,999,999,999
10,000,000,000,000,000 to 99,999,999,999,999,999,999
100,000 to 999,999
1 to 99,999
1,000,000 to 9,999,999,999
Equipment
00000001 to 00199999
A to ZZZZZZZZ
Process Plans
50000000 to 99999999
A to ZZZZZZZZ
Process Materials
1 to 99,999,999
100,000,000 to 199,999,999
A to ZZZZZZZZ
* 
In the following sections, installation and configuration instructions apply to both Windows and UNIX installations. Where Windows and UNIX differ, additional documentation is provided to show the differences.