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Small and medium business | Business Central, N...
Answered

Extending user table

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Posted on by 71

Hello everyone, 

I came across the error "The system or virtual table "User" cannot be extended".

I read in the microsoft documentation that system tables cannot be extended, however in "Programming Microsoft Dynamics 365 Business Central" by Mark Brummel, there's a paragraph saying that "with full developer license rights, we can modify system tables to extend their usage".

So, is it possible to extend the User table in Business Central 16 ? 

Thanks in advance

I have the same question (0)
  • Suggested answer
    srttel Profile Picture
    Microsoft Employee on at

    Hi,

    from the official documentation there is written:

    ##

    System and virtual tables cannot be extended. System tables are created in the ID range of 2.000.000.000 and above. For more information about object ranges, see Object Ranges.

    ##

    docs.microsoft.com/.../devenv-table-ext-object

  • Verified answer
    Teddy Herryanto (That NAV Guy) Profile Picture
    14,306 Super User 2026 Season 1 on at

    You can't extend the User table. What you can do is extending User Setup table. Use the User Setup table for what you are trying to do.

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