# SharePoint API Limits

When migrating data into, out of, or within SharePoint Online, Microsoft enforces strict **throttling limits** to ensure fair usage across tenants.  These limits scale depending on how many licenses you have. 

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### What Are Resource Units?

Resource Units (RUs) are how Microsoft measures the cost of API operations. Each action your migration tool performs consumes a specific number of RUs.

#### Resource Unit Costs for Movebot Migrations

| **Operation**                                              | **Resource Units (per file or folder)** |
| ---------------------------------------------------------- | --------------------------------------- |
| Scan Directory (Excluding Permissions and Version History) | 2                                       |
| Create Folder (Non-Delta)                                  | 2                                       |
| File Upload                                                | 2                                       |
| File Download                                              | 1                                       |

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### Daily Tenant-Level Limits

These limits apply daily across the **entire tenant**, regardless of how many apps are in use.

| **Tenant License Count** | **Daily Limit** |
| ------------------------ | --------------- |
| 0 – 1,000                | 5,400,000       |
| 1,001 – 5,000            | 10,800,000      |
| 5,001 – 15,000           | 16,200,000      |
| 15,001 – 50,000          | 21,600,000      |
| 50,000+                  | 27,000,000      |

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### Daily Application-Level Limits (Per App, Per Tenant)

These limits apply daily **per app registration**, and **per tenant.** 

| **Tenant License Count** | **Daily Limit** |
| ------------------------ | --------------- |
| 0 – 1,000                | 1,200,000       |
| 1,001 – 5,000            | 2,400,000       |
| 5,001 – 15,000           | 3,600,000       |
| 15,001 – 50,000          | 4,800,000       |
| 50,000+                  | 6,000,000       |

***

See the page [SharePoint Performance Expectations ](https://docs.movebot.io/platform-guides/sharepoint/sharepoint-performance-expectations)to see how these limits can affect migration performance.