How To Fix T7455 - Transaction &1 already in a &2 reference

SAP Error Message - Details

• Message type: E = Error

• Message class: T7 - Forex entry

• Message number: 455

• Message text: Transaction &1 already in a &2 reference

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 T7455 - Transaction &1 already in a &2 reference ?

  The SAP error message T7455, which states "Transaction &1 already in a &2 reference," typically occurs in the context of transaction management within SAP systems. This error indicates that a specific transaction (denoted by &1) is already associated with a reference type (denoted by &2), and the system is preventing a duplicate assignment or action.
  Cause:
  
  Duplicate Transaction Assignment: The error often arises when there is an attempt to assign a transaction that is already linked to a particular reference type. This can happen during data entry or when trying to process transactions that have already been recorded.
  Data Integrity Issues: There may be underlying data integrity issues where the system detects that the transaction is already in use or has been processed in a way that conflicts with the current operation.
  Configuration Errors: Incorrect configuration settings in the SAP system related to transaction management or reference types can also lead to this error.
  
  Solution:
  
  Check Existing Transactions: Review the existing transactions in the system to confirm whether the transaction in question is already linked to the specified reference type. You can do this by navigating to the relevant transaction management screens in SAP.
  Avoid Duplicate Entries: Ensure that you are not trying to create or process a transaction that has already been recorded. If necessary, modify your approach to handle existing transactions instead of creating new ones.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the transaction and reference types you are working with. This can provide insights into how to properly manage transactions.
  System Configuration Review: If the issue persists, it may be necessary to review the configuration settings related to transaction management. This may involve consulting with your SAP Basis or configuration team to ensure that everything is set up correctly.
  Error Logs: Check the system logs for any additional error messages or warnings that may provide more context about the issue. This can help in diagnosing the root cause.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with the relevant transaction codes that pertain to the operations you are performing. This can help in navigating the system more effectively.
  SAP Notes: Search for SAP Notes related to error T7455 in the SAP Support Portal. There may be specific patches or updates that address this issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  
  If the problem continues after trying the above solutions, it may be beneficial to escalate the issue to your SAP support team or consult with SAP directly for further assistance.