Examples
The expressions for custom commands are looking to see if the data received matches the Custom Command identifier.
For the ODI screen or a barcode scanner the following syntax can be used for the expression.
([Listener.data] = CUSTOM_COMMAND)
where CUSTOM_COMMAND is the Custom Command identifier.
For example, to have a Custom Command trigger an email to maintenance:
([Listener.data] = email_maintenance)
In this can case the Target would be Email with an Email Template that would have the associated text in the template and the appropriate maintenance email address.