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Error: Part Reference's menu item must point to a Form.

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Hello everyone,

I am trying to go to the lines of fixed assets journal and started receiving this error, even though this form doesn't have any form parts.
Any advice, please?

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André Arnaud de Cal... 301,035 Super User 2025 Season 2 on at

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Hi,

Are you aware of any changes to this environment? E.g. deployment of a customization or partner solution? Are you able to check in Visual Studio if there is a form extension for the Asset journal lines?

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Hana Xue Microsoft Employee on at

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Hi,
Have you made some customizations in this form. Because in my test environment it works fine.

You need to check the menu item configuration according to the prompt message. Make sure the menu item's "ObjectType" property is set to "Form". For more information you can check this article, it mentions about creating forms as well as menu items, you can check based on the article. https://dynamics365musings.com/simple-list-and-details/
Best Regards,
Hana

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Layan Jwei 8,112 Super User 2025 Season 2 on at

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Hi Community member,

You need to check if there are customizations made in this area. Cause this is a standard form and such error shouldn't appear.

If you sure there are no customizations, then maybe try to build the environment.

Thanks,

Layan Jweihan

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Community member 12 on at

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I did do some customization in an extension class to customize some behaviour in the init method, but I even deleted that form extension class and made a full build, it is still appearing. It is really weird because I don't even have a menu item extension to this form, and it doesn't contain any form parts.

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Waed Ayyad 9,039 Super User 2025 Season 2 on at

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Hi Community member,

Since you delete your extensions of the form, then try to do full be for the model that you tried to do extension on it and try to clear cache.

Path: setting -> user options -> Usage data -> All usage data

Thanks,

Waed Ayyad

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Community member 12 on at

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Hi Waed,

Thanks for the reply, but I tried to full build, full db sync and clearing all caches, still never works though.

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André Arnaud de Cal... 301,035 Super User 2025 Season 2 on at

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Have you tried using the debugger to find out where and when it is raising the error? You can then learn what could be the culprit.

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Community member 12 on at

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Hi Andre, I am sorry I am a new dev, I am not sure where exactly should I put a breakpoint to use the debugger, can you please advise?

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Waed Ayyad 9,039 Super User 2025 Season 2 on at

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Hi Community member,

1- Try to restart IIS.

2- Try to restart you Dev Box. And As Ander mentioned try to debug the code, just open the form code and on the init method , put a break point and start the debugging.

3- If you click on the Journal number on any line does the same error appear?

Thanks

Waed Ayyad

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Layan Jwei 8,112 Super User 2025 Season 2 on at

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Hi Community member,

Are you sure you removed all customizations? Is there any customization for the "lines" menu item? Or the form assigned to the menu item?

Also are you sure you did full build and not just building the project or your model?

Yes please debug and see at what line the code fails, if there is a main method, put the break point there, if there is an init method also put the code there.

Thanks,

Layan Jweihan

Please mark this answer as "Verified" if it solved your issue. In order to help others who will face a similar issue in the future

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