Diagnosis
An entry referencing to the linked criteria field has to be establishedin the criteria rules for a subscription generator for a link betweencriteria fields .
For the given criteria field (see Technical Information) the linkedcriteria field cannot be found. The corresponding entry is eitherinvalid or missing in the database.

System Response
The subscription generator cannot work correctly.

Procedure
The subscription generator has to be recreated. Make sure that thecriteria field link is established correctly. For more informationrefer to the documentation.
Always create and test subscription generators on your test system. Ifeverything works correctly, transport the generator to the targetsystems.
After creation, transport (if necessary), and activation of the newsubscription generator on the target client, the invalid subscriptiongenerator can be set to status 'To Be Deleted'.