How To Fix KH154 - Enter a unique sequence number

SAP Error Message - Details

• Message type: E = Error

• Message class: KH - CO-PA Reporting

• Message number: 154

• Message text: Enter a unique sequence number

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message KH154 - Enter a unique sequence number ?

  The SAP error message KH154, which states "Enter a unique sequence number," typically occurs in the context of creating or maintaining master data, such as cost centers, internal orders, or other objects that require a sequence number for identification.
  Cause:
  The error arises when the system detects that the sequence number you are trying to enter is not unique. This can happen in various scenarios, such as:
  
  You are trying to create a new entry with a sequence number that already exists in the system.
  There may be a configuration issue where the sequence number range is not set up correctly.
  The sequence number might be required in a specific format or range that you are not adhering to.
  
  Solution:
  To resolve the KH154 error, you can take the following steps:
  
  
  Check Existing Entries: Verify if the sequence number you are trying to enter already exists in the system. You can do this by searching for existing records in the relevant transaction or table.
  
  
  Use a Different Sequence Number: If the sequence number is already in use, try entering a different, unique sequence number that does not conflict with existing entries.
  
  
  Review Configuration: If you are an administrator or have access to configuration settings, check the configuration for the sequence number range. Ensure that the range is set up correctly and that there are no overlaps or gaps.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on the sequence number requirements for the object you are working with.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes depending on the context, such as KS01 (Create Cost Center), KO01 (Create Internal Order), etc.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  User Permissions: Ensure that you have the necessary permissions to create or modify the entries in question, as lack of permissions can sometimes lead to unexpected errors.
  
  By following these steps, you should be able to identify the cause of the KH154 error and implement a solution to resolve it.