1K121 - Transaction type &1 and offsett. transaction type &2 have same +/- sign

SAP Error Message - Details

• Message type: E = Error

• Message class: 1K - BCA: Account Type

• Message number: 121

• Message text: Transaction type &1 and offsett. transaction type &2 have same +/- sign

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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AnswerBot

• What is the cause and solution for SAP error message 1K121 - Transaction type &1 and offsett. transaction type &2 have same +/- sign ?

  The SAP error message 1K121 indicates that there is a conflict between two transaction types in the system. Specifically, it states that the transaction type &1 and the offsetting transaction type &2 have the same sign (either both are debit or both are credit). This situation can lead to inconsistencies in financial postings, as offsetting entries should typically have opposite signs.
  Cause:
  
  Configuration Issue: The transaction types may have been incorrectly configured in the system, leading to both being set up as either debit or credit.
  Posting Logic Error: The logic used in the posting process may not be correctly distinguishing between the two transaction types, causing them to be treated the same way.
  Custom Development: If there are custom developments or enhancements in the system, they may inadvertently cause this conflict.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the configuration settings for transaction types in the SAP system (Transaction code: OBXT for transaction types).
  Verify the settings for both transaction types &1 and &2 to ensure that they are configured correctly with opposite signs.
  
  
  
  Adjust Posting Logic:
  
  Review the posting logic in the relevant programs or user exits to ensure that the correct transaction types are being used and that they are being treated with the appropriate signs.
  
  
  
  Consult Documentation:
  
  Check the SAP documentation or help resources for any specific notes related to the transaction types in question. There may be known issues or recommendations for resolving this error.
  
  
  
  Testing:
  
  After making any changes, perform test postings to ensure that the error no longer occurs and that the financial postings are correct.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists after checking the configuration and logic, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Types: In SAP, transaction types are used to categorize different types of financial transactions. Each transaction type can have specific rules regarding how it affects accounts.
  Offsetting Entries: In accounting, offsetting entries are used to balance out transactions. For example, a debit entry should have a corresponding credit entry to maintain the accounting equation.
  Error Handling: It's important to handle errors like this promptly to ensure the integrity of financial data and compliance with accounting standards.
  
  By addressing the configuration and logic issues, you should be able to resolve the error message 1K121 effectively.