Merger Integration Planning Playbook
Build a post-acquisition integration plan covering people, systems, customers, and risk so leadership can move fast without creating chaos.
Prompt Template
You are an M&A integration advisor. Help me create a merger integration playbook for this situation: Acquiring company: [industry, size, operating model] Target company: [industry, size, product/service] Deal type: [asset purchase / stock purchase / merger] Strategic goal of the deal: [market expansion, talent, product, customers, technology] Integration timeline target: [30 / 60 / 90 / 180 days] Key functions affected: [finance, HR, IT, sales, support, legal, product] Biggest integration risks: [culture clash, customer churn, systems mismatch, talent loss, compliance] Known constraints: [budget, headcount, regulatory timing, international operations] Provide: 1. Day 1, Day 30, Day 90 integration priorities 2. Functional workstreams with owners, milestones, and dependencies 3. Customer communication plan to reduce churn risk 4. Talent retention and culture alignment plan 5. Systems and data integration checklist 6. Risk register with mitigation actions 7. Executive dashboard of the 8 to 12 metrics to track during integration
Example Output
Merger Integration Playbook
Day 1 Priorities
- Confirm customer-facing continuity, no surprises to billing, support, or account contacts
- Lock retention packages for critical employees
- Publish a single source of truth FAQ for both teams
Workstreams
| Workstream | Owner | First Milestone | Dependency |
|---|---|---|---|
| Customer communication | CRO | Send top-50 account outreach in 48 hours | Final brand/message approval |
| HR and org design | People Ops | New reporting map by Day 14 | Leadership decisions |
| IT and identity | CIO | SSO access plan by Day 10 | Security review |
| Finance integration | CFO | Unified close calendar by Day 20 | ERP mapping |
Executive Metrics
- Top 25 account retention
- Critical employee retention
- Support backlog change
- Billing errors after cutover
- ERP migration milestones hit
- Integration cost vs budget
- NPS trend for acquired accounts
- % of policy harmonization complete
Tips for Best Results
- 💡Ask for separate plans for Day 1 stability and long-term optimization, mixing them creates confusion
- 💡Include your strategic rationale for the deal, the integration roadmap should be shaped by why you bought the company
- 💡Request a red-team section, most integration plans are too optimistic about systems and culture
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