71130: Acronis Cyber Protect Cloud: How to temporarily disable EWS throttling in Office 365

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Last update: 12-09-2022

Introduction

Restoring large Microsoft 365 items might take significant time due to throttling on Microsoft side. In such cases, we recommend temporarily disabling Exchange Web Services API throttling to improve the performance during restore of Microsoft 365 items.

How to temporarily disable EWS Throttling policy

  1. Go to admin.microsoft.com and sign in with your administrator credentials
  2. On the left panel, navigate to Support > New service request                                                                                             
  3. In the panel that appears on the right side, type EWS into the search box and select the "Increase EWS throttling policy" option from the auto-complete list:                                                                                                                                     
  4. Click the "Run Tests" button to determine the current throttling state:                            
  5. After the test completes, you will see one of 3 possible messages:
  • "The Exchange Web Services are Throttled" - EWS throttling cannot be disabled currently - follow the instruction to create a new service request:

 

  • "Your Exchange Web Services are not currently throttled" - EWS throttling is already disabled. A note is shown stating when throttling will be reapplied:

  • "The Exchange Web Services are Throttled":
  1. Choose a duration, ensure the self-acknowledgment is ticked & click the 'Update Settings' button:
  2. If the change completes successfully, a message similar to this will be shown:

     

More information

For more information about EWS Throttling policy, check the following Microsoft article: EWS throttling in Exchange

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