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Edit in Excel BC20 issue

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Posted on by mnitcomputerguy

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I'm seeing a BC20 install where edit in excel isn't working. Had this working with BC19 onprem no problem.

The error is "no authentication realm is defined" yet aad authentication in the web client is working fine.

Has anyone else seen this with the edit in excel/BC20 feature?

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Inge M. Bruvik 1,161 Moderator on at

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You need to run a setup process for this on prem, the process is documented here:

docs.microsoft.com/.../configuring-excel-addin

Hope this helps you.

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YUN ZHU 97,970 Super User 2026 Season 1 on at

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Hi, maybe it has something to do with the update below.

https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/upgrade/deprecated-features-platform#ws-federation-with-azure-active-directory-authentication

https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/administration/authenticating-users-with-azure-ad-overview#moving-from-ws-federation-to-openid-connect

Hope this helps.

Thanks.

ZHU

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