How To Fix 1K122 - Transaction type &1 and return trans. type &2 have differing +/- sign

SAP Error Message - Details

• Message type: E = Error

• Message class: 1K - BCA: Account Type

• Message number: 122

• Message text: Transaction type &1 and return trans. type &2 have differing +/- sign

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 1K122 - Transaction type &1 and return trans. type &2 have differing +/- sign ?

  The SAP error message 1K122 indicates that there is a mismatch in the sign (positive or negative) between the transaction type and the return transaction type in a financial transaction. This typically occurs in the context of financial postings, where the system expects the return transaction type to have a sign that is opposite to the original transaction type.
  Cause:
  
  Transaction Type Configuration: The configuration for the transaction types in the system may not be set up correctly. Each transaction type should have a corresponding return transaction type that has the opposite sign.
  Posting Logic: The logic used in the posting process may be incorrectly defined, leading to a situation where the system cannot reconcile the signs of the transaction types.
  Data Entry Error: There may be an error in the data entry where the wrong transaction type or return transaction type is selected.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the transaction code OBYC (for automatic postings) or SPRO (for configuration) and check the settings for the transaction types involved.
  Ensure that the return transaction type is correctly defined with the opposite sign to the original transaction type.
  
  
  
  Review Transaction Types:
  
  Verify the transaction types being used in the posting. Ensure that the correct transaction type and return transaction type are selected.
  If necessary, consult with your SAP configuration team to ensure that the transaction types are set up correctly.
  
  
  
  Correct Data Entry:
  
  If the error is due to incorrect data entry, correct the transaction type or return transaction type in the document being processed.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test transaction to ensure that the error does not occur again.
  
  
  
  Related Information:
  
  Transaction Types: In SAP, transaction types are used to define how financial transactions are processed. Each transaction type can have specific rules regarding how it affects accounts.
  Return Transaction Types: These are used to reverse or negate the effects of a transaction type. They should logically have the opposite sign to ensure that the financial statements remain accurate.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuration.
  
  If the issue persists after checking the configuration and correcting any data entry errors, it may be beneficial to consult with SAP support or your internal SAP team for further assistance.