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Unable to Open Sandbox Environment (v28)

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Posted on by heyMike

Hi Everyone,

I am facing issue with opening of my business central sandbox environment (preview) v28 since morning.

While opening getting below error :

Does anyone facing the same ?

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OussamaSabbouh 12,340 Super User 2026 Season 1 on at

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Hello,

Yes, this looks like a preview sandbox / Microsoft-side sign-in issue, not something obviously wrong in your setup, so first check Service Health in the Business Central admin center or Microsoft 365 admin center; if other environments open fine and only the v28 preview sandbox fails, that points even more to the preview environment itself. Microsoft also says preview issues should be reported through the preview bugs form.

Regards,
Oussama Sabbouh

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Aziz Skhiri 278 on at

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Hello , I already faced the same issue this morning

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RockwithNav 8,890 Super User 2026 Season 1 on at

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Give it a try after sometime, I also ended up with the same but it's all good now.

Maybe some technical glitch for a while.

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YUN ZHU 98,749 Super User 2026 Season 1 on at

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I tested it and there were no problems. Perhaps you could try recreating the environment.

Thanks

ZHU

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CU03020606-0 67 on at

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Hello, I am facing the same issue as well.

I was trying to create a preview sandbox in the AU region, but it keeps failing. However, it works fine in another environment using the US region.

From my experience, it seems that preview sandboxes are not fully stable or available across all regions yet.
As a workaround, you can try creating the environment in the US region, which appears to be working more reliably for testing the preview updates.

Thanks,
Sanket

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Mohana Yadav 61,202 Super User 2026 Season 1 on at

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It was fixed by Microsoft, please try now.

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YUN ZHU 98,749 Super User 2026 Season 1 on at

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Yesterday I received feedback from some customers that this issue occurs with newly created and upgraded preview environments, but not with existing ones.
However, Microsoft should have already fixed it; please try creating the environment again.

Thanks

ZHU

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Khushbu Rajvi. 21,593 Super User 2026 Season 1 on at

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I experienced the same issue earlier; however, it is working now. Please try again.

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