Tips and best practices for migrating a Canvas App to a Code App

Hi everyone!

I'm planning a migration of an existing classic Canvas App to a Code-first approach , and I'm looking for some advice from those who have already gone through this process.

• Licensing is not an issue, as our organization already has everything covered on that front.
• My main concerns are around architectural implications, structural risks, and design changes.

For example, I noticed that classic Canvas Apps rely heavily on the "points" (pt) measurement system for older objects, whereas Code Apps and modern controls shift toward standard pixels (px), which can affect layout scaling and responsive design.

If you have done something similar, I would love to hear:

1. What were the biggest structural bottlenecks or hidden traps during the migration?
2. How did you handle UI/UX redesigns regarding sizing (points vs. pixels) and modern controls?
3. Any tips or tools that made the transition smoother?

Thanks in advance for your insights!