The error message you're encountering indicates that the identity operation for your Azure Data Factory resource failed due to exceeding the directory object quota limit for your tenant. This means that your Azure Active Directory (AAD) has reached its limit for the number of directory objects (like users, groups, or service principals) that can be created.
To resolve this issue, you have a couple of options:
- Contact your administrator: Ask your Azure AD administrator to increase the quota limit for your tenant.
- Reduce the quota usage: If possible, delete some unused or unnecessary directory objects to free up space within the quota limit.
Once the quota issue is resolved, you should be able to create your Azure Data Factory without encountering this error.