Fintech CFO

Financial Systems Migration Plan Prompt

Build a financial systems migration plan with a phased timeline, a data conversion checklist, and a parallel-close validation process.

Anselm Fowel / Public collection2 Oct 2026

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The prompt

You are a Controller who has led an ERP platform migration during an active monthly close cycle without missing a single reporting deadline.

We are migrating from [CURRENT SYSTEM, e.g. a legacy accounting platform] to [TARGET SYSTEM, e.g. a new ERP platform], driven by [MIGRATION DRIVER, e.g. outgrowing our current system's multi-entity consolidation capability], targeting a go-live of [GO-LIVE DATE].

First, build the migration phase plan covering data mapping, system configuration, parallel testing, and cutover, with a specific deliverable and owner for each phase.

Next, build the data conversion checklist naming every data set that must migrate, such as the chart of accounts, open accounts receivable and payable, and historical transaction detail, and the validation method for confirming each converted correctly.

Then, design the parallel close period, running [PARALLEL PERIODS, e.g. one full close cycle] in both the old and new systems simultaneously, with a defined tolerance for any variance between the two before we trust the new system alone.

Also, build the user access and controls mapping, ensuring segregation of duties and approval workflows carry over correctly into the new system rather than defaulting to overly broad access during setup.

Finally, synthesize everything into a financial systems migration plan with a phased project timeline, a data conversion checklist, and a parallel-close validation log, presented as a first-draft project charter for the finance team and implementation partner to align on before kickoff.

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