MC1527468 - Microsoft Dataverse - Custom connector definition access update
Microsoft 365 Message Center announcement MC1527468.
MS Message Center's Summary
Microsoft Dataverse introduces a permission restriction affecting users with the Basic User security role starting October 15 2026. These users lose access to custom connector definitions they do not own or that lack explicit sharing. Administrators should review connector dependencies and either share specific connectors or assign a custom security role granting organization level Read access to the Connector table for impacted users.
- Administrator impact
- Administrators must review security roles and share specific connectors or assign custom security roles before the rollout date if users require continued access.
- End user impact
- Users relying on the Basic User role will lose visibility of unshared custom connector definitions.
- Importance
- 4/10: This change alters user permissions and visibility for custom connectors requiring proactive administrative review to prevent workflow disruption.
- Message Center ID
- MC1527468
- Category
- plan For Change
- Severity
- normal
- Services
- Microsoft Dataverse
- Tags
- Feature update, User impact, Admin impact
- Published
- 2026-10-27
- Last updated
- 2026-10-27
- Expires
- 2026-11-27
Beginning October 15, 2026, users assigned the Dataverse Basic User security role lose access to custom connector definitions they do not own or that have not been explicitly shared with them. How does this affect me? Users who rely on this access may no longer be able to view the affected connector definitions. This update makes no change to connector functionality. What action do I need to take? If users require continued access to custom connector definitions, take one of the following actions: Share specific connectors with the users who need access, which is recommended when only a small number of connectors are required. Create a custom security role that grants organization-level Read access to the Connector table and assign it to the relevant users to provide read access to all custom connectors in the environment. Please note that the predefined Basic User security role cannot be modified. This message is for awareness. No action is required unless users need continued access to custom connector definitions.