Message type: E = Error
Message class:  RSTT0 - Trace Tool: Message Class Engine Layer 
Message number: 555
Message text: Throughput test completed successfully
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
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The SAP error message RSTT0555, which states "Throughput test completed successfully," is not actually an error in the traditional sense. Instead, it is an informational message indicating that a throughput test has been executed and completed without any issues. This message is typically associated with performance testing in SAP systems, particularly when using the SAP Transaction ST03N or ST05 for performance analysis.
Cause: The message indicates that the throughput test, which measures the performance of the system under certain conditions, has been completed successfully. It does not signify a problem or error but rather confirms that the test ran as expected.
Solution: Since RSTT0555 is an informational message rather than an error, there is no specific solution required. However, if you are looking to analyze the results of the throughput test, you can: Review Test Results: Check the results of the throughput test to understand the performance metrics. This can help identify areas for improvement
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