How To Fix REXCRACH021 - No valid external calculation formula (must be fixed amount)

SAP Error Message - Details

• Message type: E = Error

• Message class: REXCRACH - Messages Assignment of ISR-Ref. Vendor Invoice to Cash Flow

• Message number: 021

• Message text: No valid external calculation formula (must be fixed amount)

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 REXCRACH021 - No valid external calculation formula (must be fixed amount) ?

  The SAP error message REXCRACH021 indicates that there is no valid external calculation formula available for a specific condition, and it specifies that a fixed amount is required. This error typically arises in the context of SAP's Revenue Accounting and Reporting (RAR) module or similar financial processes where external calculation formulas are used to determine amounts.
  Cause:
  
  Missing Calculation Formula: The system is unable to find a valid external calculation formula that matches the criteria for the transaction or document being processed.
  Incorrect Configuration: The configuration settings for external calculation formulas may not be set up correctly, or the required formula may not have been defined in the system.
  Data Issues: There may be issues with the data being processed, such as missing or incorrect entries that prevent the formula from being applied.
  Versioning Issues: If there are multiple versions of the calculation formula, the system may not be able to determine which one to use.
  
  Solution:
  
  
  Check Configuration:
  
  Navigate to the configuration settings for external calculation formulas in the SAP system.
  Ensure that the required fixed amount formula is defined and active.
  Verify that the formula is correctly linked to the relevant condition types or pricing procedures.
  
  
  
  Define or Update Formula:
  
  If the formula is missing, create a new external calculation formula that meets the requirements.
  If the formula exists but is not functioning correctly, review and update it as necessary.
  
  
  
  Review Data:
  
  Check the data associated with the transaction or document that triggered the error. Ensure that all required fields are populated correctly.
  Look for any inconsistencies or missing information that could affect the calculation.
  
  
  
  Test the Formula:
  
  After making changes, test the external calculation formula to ensure it works as expected.
  Use test cases that cover various scenarios to validate the formula's functionality.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for guidance on setting up and troubleshooting external calculation formulas.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO (for configuration) or SE11 (for data dictionary) to access relevant settings.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide specific fixes or updates.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.