Copying a Predefined Object Can Cause an Upgrade Problem

Copying an object can cause an upgrade problem that is difficult to debug. Functionality is often added to most of the predefined business components during major releases. This new functionality often depends on new fields, joins, and so on, that Siebel CRM adds to a predefined business component. During the upgrade, Siebel CRM adds these new fields only to the predefined business components that reside in your merged repository.

Copying an object can result in problems following an upgrade. These problems can be difficult to locate and debug. The errors often occur because some C++ code for the business component or applet class attempts to find a field that does not exist in your custom copy of that business component or applet. The only way to debug the problem is to compare your custom business component with the predefined business component, and to add any new fields and other child object definitions that Siebel CRM added in the new release. This work can be complex, requiring detailed knowledge of what Siebel CRM modified in the new release.