05/21/2022: IMPORTANT ANNOUNCEMENT: API Calls to D365

Notice issued from Microsoft 5/21/2022.

New user-based service protection API limits will soon be applied in Microsoft Dynamics 365 Finance and Operations apps environments to ensure consistent availability and performance of the service.

These limits are designed to preserve service health in the event of client applications with extraordinary demands on server resources. Additionally, these limits are designed to throttle incoming API requests when there are sudden bursts of traffic or concurrent long-running requests against the server.

The limits are in addition to the resource-based service protection API limits that have been in place for Finance and Operations apps environments since version 10.0.19 (which protect the environment from aggregated user demand exhausting environment resources). The user-based limits define specific API usage thresholds for OData and custom API endpoints to prevent individual users or integrations from causing outages or degrading environment performance.

How does this affect me?

The new user-based service protection API limits will be available to enable in Finance and Operations apps environments with version 10.0.28. In version 10.0.29, with 2022 release wave 2, the API limits will be enabled by default in all environments. The limits will be optional, allowing environment administrators to temporarily disable them should additional time be needed to optimize integrations. In version 10.0.32, with 2023 release wave 1, the API limits will be mandatory and the option to disable API limits will no longer be provided.

What action do I need to take?

Please review your OData and custom service integrations to ensure they are prepared for the new user-based service protection API limits.

For more information on the service protection limits, including handling retry operations, monitoring API throttling, and guidance and maximizing throughput, see Service protection API limits.

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