How To Fix T1191 - Calendars entered do not match reference interest rate (&)

SAP Error Message - Details

• Message type: E = Error

• Message class: T1 - Financial instruments

• Message number: 191

• Message text: Calendars entered do not match reference interest rate (&)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message T1191 - Calendars entered do not match reference interest rate (&) ?

  The SAP error message T1191, which states "Calendars entered do not match reference interest rate (&)," typically occurs in the context of financial transactions involving interest calculations, such as loans or investment products. This error indicates that there is a mismatch between the calendars defined for the transaction and the reference interest rate being used.
  Cause:
  
  Calendar Mismatch: The transaction may be using a different calendar than the one defined for the reference interest rate. This can happen if the interest rate is set up with a specific calendar (e.g., fiscal year, calendar year) that does not align with the calendar used in the transaction.
  Configuration Issues: There may be configuration issues in the interest rate settings or in the transaction settings that lead to this mismatch.
  Data Entry Errors: Incorrect data entry when setting up the transaction or the interest rate can lead to this error.
  
  Solution:
  
  
  Check Calendar Settings:
  
  Verify the calendar settings for both the transaction and the reference interest rate. Ensure that they are aligned and using the same calendar.
  You can check the calendar settings in the relevant configuration areas of SAP, such as in the Financial Accounting (FI) or Treasury modules.
  
  
  
  Adjust Transaction Settings:
  
  If the transaction is using a specific calendar, consider adjusting it to match the calendar of the reference interest rate.
  Review the transaction details to ensure that all relevant fields are correctly populated.
  
  
  
  Review Interest Rate Configuration:
  
  Check the configuration of the reference interest rate in the system. Ensure that it is set up correctly and that the calendar associated with it is appropriate for the transactions being processed.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on configuring interest rates and calendars. This can provide insights into best practices and common pitfalls.
  
  
  
  Testing:
  
  After making adjustments, test the transaction again to see if the error persists. If it does, further investigation may be needed.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like OB52 (for fiscal year variant) or OB29 (for defining calendars) to check and adjust settings.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional context or solutions based on specific versions or configurations.
  User Forums: Consider visiting 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.
  
  By following these steps, you should be able to identify and resolve the cause of the T1191 error in SAP.