How To Fix BS251 - The business transaction cannot start with 'Z'

SAP Error Message - Details

• Message type: E = Error

• Message class: BS - Status Management

• Message number: 251

• Message text: The business transaction cannot start with 'Z'

What causes this issue?

Transactions that begin with Z are reserved for customers and may only
be created by customers (as G/L transactions).

How to fix this error?

Enter a transaction ID that begins with Z.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BS251 - The business transaction cannot start with 'Z' ?

  The SAP error message BS251 indicates that a business transaction cannot start with the letter 'Z'. This typically occurs in the context of custom transactions or processes that have been defined in the SAP system. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Custom Transaction Codes: In SAP, transaction codes that start with 'Z' are usually custom-developed transactions. The system may have restrictions or configurations that prevent certain transactions from being initiated under specific conditions.
  Configuration Settings: The system may have been configured to restrict the use of certain transaction codes based on business rules or user roles.
  Authorization Issues: The user may not have the necessary authorizations to execute the transaction starting with 'Z'.
  Incorrect Transaction Code: The transaction code entered may be incorrect or not properly defined in the system.
  
  Solutions:
  
  Check Transaction Code: Verify that the transaction code you are trying to execute is correct. Ensure that it is defined in the system and that you have the right code.
  Review Custom Development: If the transaction is custom, check with your development team to ensure that it is properly configured and that there are no restrictions on its execution.
  Authorization Check: Ensure that the user has the necessary authorizations to execute the transaction. You can check this in the user roles and profiles assigned to the user.
  Consult Configuration: Review the configuration settings in the system that may restrict the use of transactions starting with 'Z'. This may involve checking transaction variants or user parameters.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They can provide insights based on the specific configuration of your system.
  
  Related Information:
  
  Transaction Codes: In SAP, standard transaction codes typically start with letters other than 'Z'. Custom transaction codes are often prefixed with 'Z' or 'Y' to distinguish them from standard SAP transactions.
  Authorization Objects: Familiarize yourself with the relevant authorization objects that may be affecting the execution of custom transactions.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide guidance on similar issues.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the BS251 error message in SAP.