web
You’re offline. This is a read only version of the page.
close
Skip to main content
Community site session details

Community site session details

Session Id :
Microsoft Dynamics AX (Archived)

Unable to save . Unable to save Class Class1. Id 40001 already exists.

(0) ShareShare
ReportReport
Posted on by

Trying to create a new class and get the above error.  Ran a report on Class Id's (modify rpt: SysDataAreaPrintCollections) and the next one should be 10341

I think i have one of the following options that need to be done.

1. How do i set the next ID #?

2. Clean up the Class ID #'s?

Thanks for you help

Abraham Z.

*This post is locked for comments

I have the same question (0)
  • Verified answer
    Mea_ Profile Picture
    60,284 on at
    RE: AX 2009 Unable to save . Unable to save Class Class1. Id 40001 already exists.

    Hi Abraham Zwygart,

    There could be an issue with .aoi files. Select Reindex from Tools\Development tools\Application objects. Or you can delete this files from AOS folder and restart AOS.

  • Community Member Profile Picture
    on at
    RE: AX 2009 Unable to save . Unable to save Class Class1. Id 40001 already exists.

    Thanks.  that solved the problem.

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Responsible AI policies

As AI tools become more common, we’re introducing a Responsible AI Use…

Abhilash Warrier – Community Spotlight

We are honored to recognize Abhilash Warrier as our Community Spotlight honoree for…

Leaderboard > 🔒一 Microsoft Dynamics AX (Archived)

#1
Community Member Profile Picture

Community Member 4

#2
Nayyar Siddiqi Profile Picture

Nayyar Siddiqi 2

#2
NNaumenko Profile Picture

NNaumenko 2

Last 30 days Overall leaderboard

Featured topics

Product updates

Dynamics 365 release plans