if a company has multi doman do not be ax authentication fial?

Hi mostafa, welcome to Dynamics User Group. Please never forget to provide sufficient level of details of your problem, including the version of AX (you can conveniently attach a tag with the version).

To answer your question: No, it won’t fail if you follow the setup required by Dynamics AX. If you read the documentation (e.g. Work with users from Active Directory [AX 2012]), you’ll learn the following: If you have AD DS domains, and all the domains in the forest are set up to have two-way trust, Microsoft Dynamics AX recognizes all the users in the domain.

As you can see, the existing documentation can answer many questions; get used to using it.

(Question moved from the Developer forum.)

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