# Reducing throttling impact in M365
## Overview
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You can read more about throttling on the [official **Microsoft** website](https://learn.microsoft.com/en-us/graph/throttling?utm_source=chatgpt.com).
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Throttling limits the number of API calls or operations within a given time window to prevent overuse of resources and ensure server stability. If throttling is exceeded, further requests from the client (such as **Microsoft Graph** API calls for **Microsoft 365** backups in **Xopero ONE**) are temporarily restricted, which may extend backup times.
**Microsoft** uses throttling to maintain the optimal performance and reliability of its services. The more complex the **Microsoft 365** organization, the more likely throttling issues are to occur.
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Learn more about throttling limits on the [**Microsoft** learning portal](https://learn.microsoft.com/en-us/graph/throttling-limits).
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The best way to minimize throttling is to schedule backup procedures outside of business hours. Below are a few other example methods you can use to reduce the impact of throttling in **Microsoft 365**.
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## Limiting concurrent tasks
In **Xopero ONE**, you can set a limit for concurrent backup tasks based on the number of users or the time interval between executions. When creating or editing an **M365** backup plan, go to the **Scheduler** section to adjust the default values— enable task balancing by defining the backup times.
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## Increasing EWS throttling policy limits in Microsoft 365
By default, **Microsoft 365** throttles data flow to maintain service availability and stability. A side effect of this throttling is that backups may take longer than expected. To make your **Microsoft 365** backups run faster:
1. Sign in to your **Microsoft 365 Admin Center**.
2. Navigate to **Support** > **New service request**.
3. In the search field, enter **EWS** and select **Increase EWS Throttling Policy** from the list.
4. Run the diagnostic test to determine whether you are being throttled.
5. If you are being throttled, **EWS** will temporarily increase the throttling limits.
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