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# System prepended metadata

title: Review of Smart Rollups Inbox

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# Review of Smart Rollups Inbox

## Remarks

1. Disable SCORU when error in `begin_application`, `finalize_application` and `init_inbox` (at migration).
    - Add a fct helper to disable scoru. 
2. Migration to N: take care of `EoL/SoL/Info_level` (check and/or fix). Ok for M.
3. Evaluate gas cost of `add_messages` for different message position, if delta < 100, ok.
4. Make cost of `add_messages` not depend on position.
