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Dynamics 365 Community / Forums / Finance | Project Operations, Human Resources, ... / Is COC of methods allo...
Finance | Project Operations, Human Resources, ...
Suggested Answer

Is COC of methods allowed in internal classes ?

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Posted on by Community Member

Hi All,

I am currently working on a requirement in which I have to add customized code in one of Microsoft's internal classes. 

Class name is 'EngChgEcmRequestWorkflow' and it is internal.

COC of the method with an 'internal' modifier is not allowed and error is thrown.

But this is not the case with internal classes. I am getting a BP warning "internal class cannot be extended" but not compile error.

Is it safe to ignore this "BP warning" and continue?

Thanks!

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  • Suggested answer
    André Arnaud de Calavon Profile Picture
    André Arnaud de Cal... 301,069 Super User 2025 Season 2 on at

    Hi Muhammad,

    It is not safe to ignore it. Microsoft can change the BP warning into an error. The contents of the class can also be changed or deprecated without any upfront notification.

    It would be the best to create an Extensibility request. docs.microsoft.com/.../extensibility-requests

  • huijij Profile Picture
    huijij 19,811 on at

    Hi Muhammad,

    As mentioned,It is not safe to ignore it. Internal Method can not be wrapped in extension class the same as COC.

    regards

  • Martin Dráb Profile Picture
    Martin Dráb 237,959 Most Valuable Professional on at
    It sounds like a bug to me. You shouldn't be able to refer to internal classes from other packages than where the class is defined (and its friend packages). The warning may suggest that MS is aware of the problem and gives you a chance to change existing code before they fix the bug (and code extending internal class will stop compiling).

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