How To Fix RZ391 - You must specify both instance profile and start profile

SAP Error Message - Details

• Message type: E = Error

• Message class: RZ - Messages for Computing Center Management System

• Message number: 391

• Message text: You must specify both instance profile and start profile

Self-Explanatory Message

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RZ391 - You must specify both instance profile and start profile ?

  The SAP error message RZ391, which states "You must specify both instance profile and start profile," typically occurs when there is a misconfiguration in the SAP system's profile settings, particularly when starting an instance of the SAP system.
  Cause:
  This error usually arises due to one of the following reasons:
  
  Missing Profile Parameters: The instance profile or the start profile is not specified in the configuration.
  Incorrect Configuration: The parameters in the configuration files may be incorrectly set or missing.
  Startup Command Issues: The command used to start the SAP instance may not include the necessary profile parameters.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the Start Command:
  
  Ensure that the command used to start the SAP instance includes both the instance profile and the start profile. The command typically looks like this:
  startsap <instance> <start profile>
  
  Example:
  startsap <instance_name> <start_profile_name>
  
  
  
  
  Verify Profile Files:
  
  Check the profile files in the directory where SAP profiles are stored (usually in the INSTANCE directory under the SAP directory structure).
  Ensure that both the instance profile (e.g., INSTANCE_NAME_DVEBMGS00) and the start profile (e.g., START_PROFILE) exist and are correctly configured.
  
  
  
  Review the Instance Profile:
  
  Open the instance profile and ensure that it contains the necessary parameters for the instance to start correctly.
  Look for any missing or incorrect parameters that might prevent the instance from starting.
  
  
  
  Check the SAP Kernel:
  
  Ensure that you are using a compatible version of the SAP kernel. Sometimes, kernel issues can lead to unexpected errors.
  
  
  
  Use SAP Management Console (SAP MC):
  
  If you are using SAP Management Console, you can start the instance from there, which may help avoid manual command errors.
  
  
  
  Consult SAP Documentation:
  
  Refer to the official SAP documentation or notes related to your specific version of SAP for any additional troubleshooting steps or known issues.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to this error message. SAP frequently updates their knowledge base with solutions to common issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered and resolved similar issues.
  Logs: Review the logs in the dev_* files (e.g., dev_w0, dev_disp) for more detailed error messages that can provide additional context on the issue.
  
  By following these steps, you should be able to resolve the RZ391 error and successfully start your SAP instance.