Windchill-ESI Tibco- Oracle for ECN

We are using the out of the box Windchill-Oracle Apps ESI project file.

We use the ECN object in Windchill to release our parts/documents.  The Tibco project keeps failing because it's trying to send the ECN object from Windchill to create the ECO object in Oracle.

We don't use ECOs in Oracle, so we don't want  Windchil and ESI to send the ECN data to Oracle or create an ECO in Oracle.

Has anyone else done this or have any idea how we can modify the Tibco Designer project to not send the ECN to Oracle?

Thanks in advance