Hello devi,
A trigger service is a Flow service and have never seen a property to disable a Flow service.
Perhaps you are asking [after sometime we have disabled that trigger]
If I interpreted your question correctly, then I provide the following explanation: A trigger is a client to the Message Broker. Therefore, if the client (trigger) is disabled when a new document is submitted, then the new document will remain in the Message Broker.
I hope this helps.
#Flow-and-Java-services#Integration-Server-and-ESB#webMethods