- Veeam Support Knowledge Base
- Guest Processing for Microsoft SQL Server Results in Logon Failure Error
Guest Processing for Microsoft SQL Server Results in Logon Failure Error
| KB ID: | 2689 |
| Product: | Veeam Backup & Replication | 9.5 | 10 | 11 | 12 | 12.1 | 12.2 | 12.3 | 12.3.1 | 12.3.2 | 13 | 13.1 |
| Published: | 2018-07-13 |
| Last Modified: | 2026-05-01 |
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Challenge
When performing any of the following operations, the following error occurs:
- Back up of SQL Server transaction logs.
- Truncation of SQL Server transaction logs.
- Collection of SQL instances metadata for Veeam Explorer for Microsoft SQL.
While the error message varies depending on the actual operation, there is a common error thrown in the job sessions:
Logon failure: the user has not been granted the requested logon type at this computer. Code: 1385
Cause
This issue occurs due to missing required permissions.
Solution
The account specified for use with Application-Aware Processing must be granted the required guest processing permissions on the SQL server.
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