MS CRM 2011: Depth of Plugin post Workflow execution.

Hi,

I want Opportunity to be lost as Cancelled via a OOB Workflow executed on some condition on Opportunity page, but not manually through clicking 'Close As Lost' ribbon button and selecting Cancelled.

I have written a Plugin which checks for Depth = 1 on SetStateDynamicEntity message name of Opportunity. If found, thrown an Exception to stop user.

Worked fine when manually clicked on ribbon button for losing Opportunity.

But I also found the same exception on OOB Workflow execution on Opportunity.

What can be done now to resolve it.

Thanks,

Arun