Database Error Messages

Release
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  • 23ai
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Updated
Jun 24, 2024

TNS-12661

Protocol authentication to be used

Cause

The authentication service has determined that the Oracle Net transport protocol in use is to be utilized to authenticate a user's identity.


Action

This error is used solely to communicate information between the authentication service and the Oracle Net session layer and should not normally be visible. If the error is seen, contact Oracle Worldwide Support.