News and Announcements icon

Dynamics 365 CommunityForums Finance | Project Operations, Human Resources, ... Difference between cha...

Finance | Project Operations, Human Resources, ...

Suggested answer

Difference between chain commands & class extension in d365fo

(0) Share

Report

Report

Posted on by TonyAx

570

Hi All,

what is difference between chain commands & class extension in d365fo

All responses Img

All responses (2)

Answers Img

Answers (0)

Suggested answer

Martin Dráb 232,850 Most Valuable Professional on at

Like (0)

Report

RE: Difference between chain commands & class extension in d365fo

Chain of Command is the thing that allows you to write method extensions and call next in them. Then you'll get several methods (of the same name) that are called in sequence instead of the single original method.

Class extensions are a more general concept. For example, if you add a class extension method, add a class field or an event handler, you're extending a class but you're not using CoC.

Also, check out documentation: Class extension - Method wrapping and Chain of Command.
Manner1954 10 on at

Like (0)

Report

RE: Difference between chain commands & class extension in d365fo

Hi,

A class extension and CoC are used together.

Helpful resources

News and Announcements

🌸 Community Spring Festival 2025 Challenge & Updates🌸

Quick Links

Leaderboard

#1

André Arnaud de Cal... 293,998 Super User 2025 Season 1

#2

Martin Dráb 232,850 Most Valuable Professional

#3

nmaenpaa 101,158 Moderator

Leaderboard

Featured topics

End-of-life Announcement for Microsoft Dynamics GP

Product updates

Dynamics 365 release plans