Live status of all services Advisory · resolved

Users experienced degraded performance in the mobile app and S2S API authentication failures

Dynamics 365 Business Central DN1509101

Users experienced degraded performance in the mobile app and S2S API authentication failures.

Status
Service restored
Feature
Other
Region
Not specified (all regions)
Started
Oct 14, 2026, 17:30 CEST
Resolved
Oct 15, 2026, 16:30 CEST
Duration
23 h

Root cause

A code misconfiguration in a recent service update.

Next Steps: We're reviewing our service update procedures to find ways to prevent this problem from happening again.

Final status

We identified a recent service update introduced a code misconfiguration causing degraded performance for the Business Central app on Android and iOS. Users also experienced authentication failures with service-to-service (S2S) apps causing failures refreshing Business Central data in Power BI and dataflows. We performed a failover to route traffic to an endpoint with a known working service version and confirmed via service diagnostic review that users were no longer experiencing degraded performance or S2S authentication failures.

This is the final update on this incident.

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Source: Microsoft Graph, Service Communications API. This is the view of a Swiss Microsoft 365 tenant: services not licensed there are missing, and individual issues may affect your tenant differently. Microsoft names the region only in the issue text. The Switzerland view shows issues for Switzerland, for Europe in general and those without a region, but not issues that only name other countries such as Germany or the UK. This page is not provided by Microsoft.