Attempted to create a trigger with an application variable. A caption and a Name has been created as the following.
trg_<%TableName%>_update.
When a "Sync & Convert" is done, it does not substitute the table in the script generated. It remains as %TableName%
If application variable needs to be used in trigger name, it is necessary to check the 'Generate SQL Only' check box on tab General of Trigger Properties form and full specification must be written on tab SQL.
The solution is explained here.