Removing workflow item from Inbox

Hi,

I am changing the status of an object from workflow,(database table is updated) based on User decision in the workflow.

The same status can be updated from transaction also.

But if I am updating the status from transaction, then workflow item with user decision needs to be removed from Inbox.

Or it should not be executable.

How can I do this?

Please Advice.

Thanks,

Vivek.