How To Fix FBS_SE202 - Field value must not be changed (field &1, old: &3, new: &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: FBS_SE - Messages for Transfer of FIN-MDM Data

• Message number: 202

• Message text: Field value must not be changed (field &1, old: &3, new: &2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FBS_SE202 - Field value must not be changed (field &1, old: &3, new: &2) ?

  The SAP error message FBS_SE202 ("Field value must not be changed (field &1, old: &3, new: &2)") typically occurs in the context of financial transactions or document processing, particularly when there is an attempt to change a field value that is not allowed due to business rules or system constraints.
  Cause:
  
  Field Restrictions: The field in question is likely defined as non-changeable after a certain point in the transaction lifecycle. For example, once a financial document is posted, certain fields (like amounts, account numbers, etc.) may be locked to prevent inconsistencies.
  Document Status: The document may be in a status that does not allow changes. For instance, if a document is already cleared or settled, changes to certain fields may be prohibited.
  Custom Logic: There may be custom validations or enhancements (like user exits or BAdIs) that enforce additional rules on field changes.
  
  Solution:
  
  Review Field Change Logic: Check the configuration or custom code related to the field in question. Ensure that the field is intended to be changeable at the point in time you are trying to make the change.
  Document Status Check: Verify the status of the document. If it is in a status that prohibits changes, you may need to reverse or adjust the document in a way that allows for the necessary changes.
  Consult with Functional Team: If you are unsure why the field is restricted, consult with your SAP functional team or a business analyst who understands the business rules governing the transaction.
  Transaction Type: Ensure that you are using the correct transaction type that allows for the changes you are trying to make.
  SAP Notes: Check for any relevant SAP Notes that might address this issue or provide guidance on handling similar situations.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes like FB01 (Post Document), FB02 (Change Document), or others related to financial postings.
  Field Documentation: Review the field documentation in the SAP system to understand its properties and restrictions.
  Debugging: If you have access, you can debug the transaction to see where the error is being triggered and understand the logic behind the restriction.
  User Exits and BAdIs: If there are custom enhancements in place, review them to see if they are enforcing the restriction.
  
  If the issue persists after checking these areas, it may be necessary to involve your technical team or SAP support for further investigation.