Manage and increase quotas for classic data governance resources
This article highlights the limits that currently exist in the classic Microsoft Purview Data Governance service. These limits are also known as quotas.
Note
These are limits for the classic data governance experience.
Classic Microsoft Purview Data Governance limits
| Resource | Default Limit | Maximum Limit |
|---|---|---|
| Microsoft Purview accounts per region, per tenant (all subscriptions combined) | 3* (dependent) | Contact Support |
| Data Map throughput There's no default limit on the data map metadata storage |
10 capacity units 250 operations per second |
100 capacity units 2,500 operations per second |
| vCores available for scanning, per account** | 160 | 160 |
| Concurrent scans per Purview account. The limit is based on the type of data sources scanned* | 5 | 10 |
| Maximum time that a scan can run for | 7 days | 7 days |
| Size of assets per account | 100M physical assets | Contact Support |
| Maximum size of an asset in a catalog | 2 MB | 2 MB |
| Maximum length of an asset name and classification name | 4 KB | 4 KB |
| Maximum length of asset property name and value | 32 KB | 32 KB |
| Maximum length of classification attribute name and value | 32 KB | 32 KB |
| Maximum number of glossary terms, per glossary | 100K | 100K |
| Maximum number of self-service policies, per account | 3K | 3K |
| Maximum number of collections | 256 | 256 |
* Accounts limit is dependent on your organization. For full information, see the FAQ.
** Self-hosted integration runtime scenarios aren't included in the limits defined in the above table.
^ Increasing the data map throughput limit also increases the minimum number of capacity units with no usage. TO increase data map throughput, you can request a capacity unitl upgrade. See Data Map throughput for more info about the elastic data map in general.
Request quota increase
Use the following steps to create a new support request from the Azure portal to increase quota for Microsoft Purview. You can create a quota request for Microsoft Purview accounts in a subscription or tenant (dependent on your organization), and the data map throughput (capacity units) of a specific account.
Caution
Once you have upgraded your data map throughput, you can't downgrade.
On the Azure portal menu, select Help + support.
In Help + support, select New support request.
For Issue type, select Service and subscription limits (quotas).
For Subscription, select the subscription whose quota you want to increase.
For Quota type, select Microsoft Purview. Then select Next.
In the Details window, select Enter details to enter additional information.
Choose your Quota type, scope (either location or account) and what you wish the new limit to be
Enter the rest of the required support information. Review and create the support request