D365 FO – Error writing to cdm_companies entity during Legal Entity update.

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Posted on by AK-29080207-0

Issue creating new entity in D365 FO sandbox, see attached image for the error.

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Dynamics 365 Finance

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Anton Venter 20,672 Super User 2026 Season 1 on at

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@AK-29080207-0

Can you check the following, I am not entirely sure if it applies in your scenario:

Your application registration has be configured in F&O under System Administration -> Microsoft Entra ID applications.

In this form, the F&O user account (User ID) must have access permission to the data entity with the correct security role.

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AK-29080207-0 8 on at

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Thanks a lot, Anton, for taking the time to share your suggestion and the detailed explanation — much appreciated.

In my case, this doesn’t seem to apply to the scenario. The Microsoft Entra ID application is already configured correctly in System administration > Microsoft Entra ID applications, and the associated F&O user has the required roles and permissions.I was able to successfully create 2–3 data entities earlier in the same environment without any issues. However, the error has started appearing only now when creating a new data entity, without any recent configuration changes from our side.

I’ve done some R&D at my end as well, including validating: Security roles and data entity permissions in D365 F&O, User access and privileges, Relevant settings in PPAC.

Everything appears to be in place and unchanged. That’s why this behavior is a bit unexpected, especially since it’s occurring in an existing and previously working setup.

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Anton Venter 20,672 Super User 2026 Season 1 on at

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@AK-29080207-0

Just a wild guess and you might have done this already. Can you confirm that you added the new data entity to a security privilege? If yes, is the Grant property set accordingly?

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Sohaib Cheema 49,664 Super User 2026 Season 1 on at

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Hi @AK-29080207-0

have a look at this thread

https://stackoverflow.com/questions/66131519/dual-write-error-when-writing-data-from-d365-to-cds

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AK-29080207-0 8 on at

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Hi,

Thank you for sharing this thread! Issue got resolved by following the steps mentioned in thread.

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