Installation and Upgrade > Windchill ESI > Installing and Configuring Windchill ESI in an SAP Environment > Object Numbering > Object Numbering and Attribute Field Length Differences > Field Length Differences - Determining How to Compensate
  
Field Length Differences - Determining How to Compensate
The discrepancies between Windchill and SAP for these field length differences can be compensated in Windchill, in the Windchill EAI components, or in a combination of both systems. For default Windchill and SAP, the following lists where the information is located:
For information on how to limit field lengths in Windchill PDMLink, refer to the instructions in the Windchill Customizer’s Guide.
For information on how to set up auto-numbering in Windchill PDMLink, refer to the instructions in the Windchill Administrator’s Guide.
If Windchill PDMLink or your ERP system has been customized, these documents provide guidance on how to compensate for these field length differences.