CWTKV0133E The ''0'' email entry in the ''2'' escalation refers to an email message that is not specified on the ''1'' task model.
Explanation
If an email attribute is specified on an escalation, the referenced email message must be defined on the task.
User response
Insert the referenced email message on the task model or change the email attribute to an existing email message. In IBM Integration Designer, open this task file in the text editor. You should find something like email="DefaultMessage".