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
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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
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