Integration with Other Applications > Introduction to Windchill ESI > Integrating Windchill ESI With Oracle Applications > Troubleshooting > Identifying Problems with Change Notices (CNs)
  
Identifying Problems with Change Notices (CNs)
This section describes common problems and possible causes that relate to CNs. A bulleted list of common problems follows. You can use the links to go directly to the information for the problem you are experiencing. If you do not see the problem you are experiencing in the list, or the suggested course of action does not solve the problem, contact your system administrator.
Can’t create a CN
Can't see the CN in Oracle Applications, even though Windchill ESI indicates a successful transaction
A Change Request is always created for an auto-generated Change Notice
Can’t create a CN
The following can cause this problem:
Invalid or missing attributes
Incorrect date format
Incorrect or invalid ESITarget organizations assigned to part
User is looking in wrong ESITarget organization(s) in Oracle Applications
CN with that number already exists in Oracle Applications
Invalid effectivity date(s) (cannot use dates in the past)
Effectivity offset (middleware global variable) set incorrectly
Serial or lot number passed in ESI response does not exist in Oracle Applications as a unit number.
One or more BOM components have empty serial or lot effectivity and the effectivity control of the assembly has been set to Unit
Effectivity priority has not been set appropriately in the file ESIORALookups.properties.
An attempt is made to create a Unit effective BOM as a sub-assembly of a Date effective BOM.
Can't see the CN in Oracle Applications, even though Windchill ESI indicates a successful transaction
The CN Enabled flag (middleware global variable) is set incorrectly.
A Change Request is always created for an auto-generated Change Notice
With the preference Automatically Generate Change Notice set to Yes, and with the preference Change Notice without Change Request set to No, this is the expected behavior. To stop Change Requests from being created for auto-generated Change Notices, set the preference Change Notice without Change Request to Yes.