What are the key risks to manage during a go-live cutover weekend?

A cutover weekend concentrates significant risk into a short window, so identifying and actively managing the highest-impact risk categories is central to a senior architect/program leader's role during execution.

• Data migration failures — discovering data quality or mapping issues only during the actual final migration run, too late to easily redesign the approach.
• Timeline overrun — technical tasks taking longer than planned, threatening the window before business operations must resume.
• Integration/interface failures — connections to other systems (banks, EDI partners, other SAP or non-SAP systems) not behaving as expected against live production data.
• Unclear go/no-go authority — ambiguity about who has authority to declare a rollback if something goes seriously wrong mid-cutover, causing costly indecision under pressure.

The most effective mitigation for all of these is rehearsal — running one or more full mock cutovers well before the actual event, timing every step, and surfacing exactly these kinds of issues while there's still time to address them, rather than discovering them for the first time live.

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