We’re currently running Dynamics AX 2012 and planning a move to Dynamics 365 Finance & Operations. I’d appreciate some practical insights from those who’ve already gone through this journey.

• Did you go with reimplementation or code upgrade? What influenced your decision?
• How did you handle existing customizations and ISV solutions?
• What challenges did you face during data migration?
• What timeline should we realistically expect for a mid-sized business?
• How did you approach user training and change management?

We’re particularly concerned about handling custom modules and ensuring good performance after go-live.

Would be great to hear real experiences, lessons learned, or things to avoid.

Thanks in advance.

We are currently running Dynamics AX 2012 and starting to evaluate an upgrade to Dynamics 365 Finance & Operations.

I’d like to understand from those who have already gone through the upgrade:

1. Did you choose full reimplementation or code upgrade?

2. How did you handle customizations and ISV solutions?

3. Any major challenges during data migration?

4. What’s the realistic timeline for mid-sized enterprises?

5. How did you manage user training and change management?

We are especially concerned about custom modules and performance optimization post-migration.

Would appreciate insights, lessons learned, or things to avoid during the upgrade journey.

Thanks in advance!

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