Enables the application that instigated a context change transaction to inform the other applications in a context session about whether the changes are to be applied or have been canceled.
The context coupon of the transaction received from StartContextChanges.
The decision made about the context changes.
If the decision is to accept the changes, the value of the decision is "accept". If the decision is to cancel the changes, the value of decision is "cancel". Once the decision has been published the change transaction is complete.
For an example refer to JoinCommonContext.