Integration with Other Applications > Introduction to Windchill ESI > Integrating Windchill ESI With Oracle Applications > Supported Business Processes > Object Numbers Case-Sensitivity
  
Object Numbers Case-Sensitivity
Windchill solutions and Oracle Applications have the following case-sensitivity characteristics:
Windchill Solutions store all object numbers using only uppercase characters
Oracle Applications stores object numbers in a case-sensitive manner (For example, it is possible for objects "ABC" and "abc" to co-exist)
All object numbers sent from Windchill PDMLink only contain uppercase letters.