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# Parallel Running Your ERP? Here's Why That Backfires
- URL: https://abcsoferp.com/episodes/s04e05-parallel-running-your-erp-here-s-why-that-backfires/
- Published: 2026-02-27T11:00:00.000Z
- Updated: 2026-09-19T21:50:21.000Z
- Description: Parallel running sounds like a safety net. In reality, it's one of the most common and most expensive mistakes in ERP implementation. In this episode, Pete and Nirav are joined by Emily Browning — an IT leader in manufacturing — to break down exactly why running your old system…
- Author: ABCs of ERP & Beyond
- Tags: Implementation and go-live, People and process, Data, reporting and AI, #episode

S04E05 · 41 min

## Episode notes

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Parallel running sounds like a safety net. In reality, it's one of the most common and most expensive mistakes in ERP implementation.

In this episode, Pete and Nirav are joined by Emily Browning — an IT leader in manufacturing — to break down exactly why running your old system alongside your new ERP almost always backfires.

We talk through:

- Why data duplication quickly becomes data chaos — and you lose your single source of truth
- The real impact on your teams when you ask them to do everything twice during go-live
- What "just in case" actually signals to the rest of the business
- Why phased or staggered go-lives rarely work for fully integrated ERP systems
- How keeping the old system alive delays ROI and muddies the business case
- Practical tactics for driving adoption — from post-go-live training to accountability dashboards

If you're approaching go-live and leadership is asking about parallel running, this episode gives you the arguments (and the confidence) to push back.

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