What are the key differences between wrapping instance methods and static methods in Dynamics 365 Finance & Operations (D365 F&O)? How do these differences affect their implementation in extension classes?

The key differences between wrapping instance methods and static methods in D365 F&O are:

1. Keyword Usage:

   • Instance Methods: No special keyword is required when wrapping instance methods in an extension class.
   • Static Methods: The static keyword must be explicitly used in the extension class when wrapping static methods.

2. Method Call:

   • Instance Methods: The next keyword is used to call the next instance method in the chain.
   • Static Methods: Similar to instance methods, the next keyword is used, but it must be within a method that is also declared as static in the extension class.

3. Application Scope:

   • Instance Methods: Can be wrapped in most scenarios, including forms.
   • Static Methods: Cannot be wrapped for forms because form classes in X++ aren’t treated as regular classes, and static methods within forms lack the required semantics for wrapping.

These differences influence how developers implement method wrapping in D365 F&O, particularly ensuring that static methods are properly handled with the required static keyword in extensions and understanding the limitations related to forms.