Some overrides have higher priorities than others.
The server processes overrides when an open operation occurs in the following
order:
- Call level overrides up to and including the level of the oldest procedure
in the activation group are applied first.
- Activation group level overrides that were specified within the same activation
group that the open operation was issued are applied.
- Call level overrides below the level of the oldest procedure in the activation
group are applied.
- Job level overrides are applied.