How To Fix OE303 - Control Structure &1 entered twice ! Please enter a new Control Structure

SAP Error Message - Details

• Message type: E = Error

• Message class: OE - IS-Oil: ITA/TPI messages

• Message number: 303

• Message text: Control Structure &1 entered twice ! Please enter a new Control Structure

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OE303 - Control Structure &1 entered twice ! Please enter a new Control Structure ?

  The SAP error message OE303, which states "Control Structure &1 entered twice! Please enter a new Control Structure," typically occurs in the context of controlling or financial modules, particularly when dealing with cost centers, internal orders, or other controlling structures.
  Cause:
  The error indicates that the control structure (e.g., cost center, internal order, etc.) you are trying to enter has already been entered in the system for the current transaction or context. This can happen due to:
  
  Duplicate Entry: The same control structure has been entered more than once in the same transaction.
  Incorrect Data Entry: There may be a mistake in the data entry process, leading to the same control structure being selected multiple times.
  Configuration Issues: There might be issues in the configuration of the controlling area or the way the control structures are set up in the system.
  
  Solution:
  To resolve the OE303 error, you can take the following steps:
  
  
  Check Entries: Review the entries you have made in the transaction. Ensure that you are not duplicating the control structure. If you find duplicates, remove the extra entry.
  
  
  Use Unique Control Structures: If you need to enter multiple control structures, ensure that each one is unique and not already in use in the current context.
  
  
  Review Configuration: If you suspect a configuration issue, consult with your SAP administrator or a consultant to review the setup of the controlling area and the control structures.
  
  
  Transaction Context: Ensure that you are in the correct transaction context. Sometimes, switching to a different transaction or mode can help clear up the issue.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the transaction you are working on.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to controlling, such as KSB1 (Cost Centers: Actual Line Items), KO01 (Create Order), etc.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it seems to be a bug or a more complex issue.
  User Training: Ensure that users are trained on the correct procedures for entering control structures to minimize the risk of duplicate entries.
  
  By following these steps, you should be able to resolve the OE303 error and continue with your SAP transactions.