Whenever the user submits a workflow request from Enterprise portal clicking more than once, multiple instances are generated. Kindly suggest a way to avoid as it is misleading.
Thank you.
Whenever the user submits a workflow request from Enterprise portal clicking more than once, multiple instances are generated. Kindly suggest a way to avoid as it is misleading.
Thank you.

Have a look here
In the event
this.WorkflowActionBar.EvaluatingCanSubmitToWorkflowyou could via the EP's Business Connector session call a static method in X++ to check whether a workflow for your current process / document / whatever already exists and avoid submitting it again. How you determine that of course depends on your environment / process etc.