How to choose between a canvas and a model-driven app
Choosing between creating a canvas app and a model-driven app is a necessary part of starting a project. Both offer unique characteristics that you should consider in making your decision.
Some projects may even include one or more of each of these as part of the overall solution.
PowerApps
The October 18’ update of PowerApps introduced the ability to host a canvas app on a model-driven form. That starts to blur the boundary lines between the app types, allowing you to use the techniques you need all in the same user experience.
Often you will need to decide one way or another which path to start down and that is what we will be talking about here.
Generally, if your app is data-focused and the data is in or could be in CDS, model-driven applications are generally more productive to get up and running quickly.
If your app needs to have a more custom layout or use connectors, generally canvas apps deserve a first look.
Here are some other things to consider when making the choice:
| Canvas apps | Model-driven apps |
|---|---|
| Complete control of layout | Quick layout with customisable views and forms |
| Easier to have dynamic visualisations on a page | Could include a canvas app for dynamic visualisation of content* |
| SharePoint or Teams app embedding | |
| Use of business process flow control | |
| Easy access to connectors | |
| Rules would have to be implemented in each canvas app using expressions/formulas as only CDS entity scoped business rules are used | CDS client-side business rules and developer client script API |
| Role-driven components (forms and dashboards) | |
| Automatic use of CDS language translation for entity messages and display labels | |
| Responsive user experience requires effort on the app creator to adapt to changes | Responsive user experience across devices |
| Access to signals including geolocation | Only developers can access location using code |
| A single person working on building the app at a time | Supports multiple people building the app as long as they are working on different components (e.g. forms) |
| Can include content and features from other AppSource ISVs merged together augmenting the app features |
*Feature is in preview as of this writing
Dynamics 365: Using Power Platform Applications
Dynamics 365: Using Power Platform Applications
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