When creating and arming an exception handler, the term action is used to describe the processing steps that take place between the point that a user causes some event that is processed by the system to the point at which the system is again in a quiescent state waiting for another event.
Each called method can have a maximum of 128 armed local exception handlers at the same time. Exceeding this limit raises an exception. This limit applies to each called method rather than being an overall maximum.