Finance | Project Operations, Human Resources, ...

Error: Request was throttled by the Throttling Framework - Custom service call log in LCS

(5) Share

Report

Posted on by CU10030917-0

105

Hi Folks!!

We have a custom service that is triggered by a third-party system to post an inventory journal in D365FO. However, we have observed that on several occasions, no journal was created in D365FO after the API call.

Upon reviewing the logs extracted from LCS (Lifecycle Services) Diagnostics, we found multiple instances of the message: “Request was throttled by the Throttling Framework.”

Interestingly, this message appears in the logs every time the custom service is invoked, regardless of whether the request was successful or failed. The infomessage is displaying below message:

{"EndpointType":"CustomServices","ThrottleType":"MemoryOverUtilizationBySystem","IsThrottled":false,"IsThrottlingEnabled":true,"IsThrottleOnPriority":false,"IsExcludedFromThrottling":false,"Threshold":95,"Passed":66,"Priority":"Default","UserId":"8e12fa32-c7a6-47f8-80c5-abdedacd0e77","AppId":"3d894b6c-a90c-47b2-b845-79abf50d78c5","RequestUrl":"/api/services/InspProductRollServiceGroup/InspProductRollService/Warehousing","ShouldSendThrottlingResponse":false,"Attempted":null}

From these logs, we don't have much information of the cause. How can we find detailed logs for custom service calls?

Any help would be greatly appreciated!

Thanks.

Categories:

Dynamics 365 Finance

I have the same question (0)

All responses (6)

Answers (0)

Suggested answer

Holly Huffman 6,534 Super User 2025 Season 2 on at

Like (0)

Report
Hi there! Good morning, evening, or afternoon - depending on where you are :) Hope you are well today!

To find detailed logs for custom service calls in Dynamics 365 Finance and Operations (D365FO), especially when dealing with throttling issues like the interesting :) one described in your post, follow these steps:

1. Enable Tracing for Custom Services

In Lifecycle Services (LCS), enable Tracing for the environment:

Go to Environment Monitoring in LCS.

Under the Activity tab, enable Trace Logs for the specific time period when the custom service is invoked.

Filter the logs by CustomServices or the specific API endpoint (/api/services/InspProductRollServiceGroup/InspProductRollService/Warehousing).

This will provide detailed traces of the service calls, including memory utilization and execution details.

2. Use the Raw Logs in LCS

In the Environment Monitoring section of LCS, download the Raw Logs for the relevant time period.

Look for entries related to the Throttling Framework and analyze the JSON details provided in the logs. Pay attention to:

ThrottleType: Indicates the reason for throttling (e.g., MemoryOverUtilizationBySystem).

Threshold and Passed: Compare these values to understand the resource utilization.

3. Enable Debugging in the Custom Service

Add detailed logging to your custom service code to capture the input, output, and execution flow:

Use the Info or Error logs in X++ to log key events.

Ensure that the logs include the Request ID or Activity ID for correlation with LCS logs.

4. Monitor Application Insights (if enabled)

If Application Insights is integrated with your D365FO environment, use it to monitor telemetry data for the custom service.

Search for the specific API endpoint and analyze the performance metrics, including memory usage and request throttling.

5. Check Throttling Configuration

Review the Throttling Framework settings in D365FO:

Navigate to System Administration > Setup > Performance > Throttling Framework.

Check if the custom service is excluded from throttling or if specific thresholds are configured.

6. Analyze Resource Utilization

Use the Resource Monitoring tools in LCS to check the memory and CPU usage during the time of the API calls.

If memory utilization is consistently high, consider scaling up the environment or optimizing the custom service.

7. Test in a Sandbox Environment

Replicate the issue in a sandbox environment with similar configurations.

Use the sandbox to test changes, such as increasing memory thresholds or optimizing the custom service.

8. Contact your partner -

If the issue persists, escalate it to your partner and/or Microsoft Support. Provide them with:

The raw logs from LCS.

Details of the custom service and API endpoint.

Steps to reproduce the issue.

Was this reply helpful? Yes No
Mariano G. 3,598 on at

Like (1)

Report

Check out this documentation and see if it helps:

Service protection API limits - Finance & Operations | Dynamics 365 | Microsoft Learn

We have a lot of integrations with 3rd-party software, and we have never had any issues with the API limits in Dynamics 365 FnO.

BTW, don't read anything posted by Holly Huffman.

Was this reply helpful? Yes No
Raj Borad 1,428 on at

Like (2)

Report

Yes Mariano,

She is posting similar things in many posts and her last option is to contact MS Support.

Was this reply helpful? Yes No
Vahid Ghafarpour 12,151 Super User 2025 Season 2 on at

Like (1)

Report

If any of the responses helped resolve your issue, please take a moment to mark the best answer. This helps others in the community quickly find solutions to similar problems.

To do this, simply click the "Does this answer your question?" button on the most helpful response and like the helpful posts. If your issue is still unresolved, feel free to provide more details so the community can assist further!

Thanks for being an active part of the Dynamics 365 Community!

Was this reply helpful? Yes No
Layan Jwei 8,116 Super User 2025 Season 2 on at

Like (0)

Report

Hi,

If you go to "system administration - setup - throttling priority mapping" do you have records there?

When the custom service is called and the load is high , then the system performance will be affected because of over-utilization of the resources by the custom service end point. Therefore the system will start to throttle those requests to handle the performance degradation.

https://learn.microsoft.com/en-us/dynamics365/fin-ops-core/dev-itpro/data-entities/priority-based-throttling

Was this reply helpful? Yes No
CU10030917-0 105 on at

Like (0)

Report

@Layan Jwei, No, there are no records under system Administration > Setup > Throttling Priority Mapping.

Was this reply helpful? Yes No