How To Fix FMFG_PAY_E020 - The field BELNR is missing from the selection screen parameters.

SAP Error Message - Details

• Message type: E = Error

• Message class: FMFG_PAY_E -

• Message number: 020

• Message text: The field BELNR is missing from the selection screen parameters.

What causes this issue?

The selection screen settings for open items requires the BELNR field to
be available.

How to fix this error?

Ensure that BELNR is available as one of the selection screen fields for
open item processing.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FMFG_PAY_E020 - The field BELNR is missing from the selection screen parameters. ?

  The SAP error message FMFG_PAY_E020 indicates that the field BELNR (which typically refers to the document number in financial transactions) is missing from the selection screen parameters in a specific transaction or report. This error usually occurs when the program or report expects this field to be included in the selection criteria but it is not available.
  Cause:
  
  Missing Field in Selection Screen: The selection screen for the transaction or report does not include the BELNR field, which is required for processing.
  Custom Development: If the transaction or report has been customized, the BELNR field may have been inadvertently removed or not included in the selection screen.
  Configuration Issues: There may be configuration settings that dictate which fields are available on the selection screen, and BELNR may not be configured correctly.
  
  Solution:
  
  
  Check Selection Screen Configuration:
  
  If you have access to the transaction or report's configuration, check the selection screen settings to ensure that the BELNR field is included.
  You may need to modify the selection screen to add the BELNR field.
  
  
  
  Use a Different Transaction/Report:
  
  If the current transaction or report does not support BELNR, consider using an alternative transaction or report that does include this field.
  
  
  
  Consult with ABAP Developer:
  
  If the issue is related to custom development, consult with an ABAP developer to review the code and ensure that the BELNR field is included in the selection screen logic.
  
  
  
  Check Authorization:
  
  Ensure that you have the necessary authorizations to access the BELNR field. Sometimes, authorization issues can prevent fields from appearing on the selection screen.
  
  
  
  SAP Notes and Support:
  
  Check for any relevant SAP Notes that may address this issue. SAP frequently releases notes that provide fixes or workarounds for known issues.
  If the problem persists, consider reaching out to SAP support for assistance.
  
  
  
  Related Information:
  
  BELNR Field: This field is commonly used in various financial documents, including invoices, payments, and journal entries. It is crucial for identifying specific financial transactions.
  Transaction Codes: Depending on the context of the error, you may be working with transaction codes related to financial management, such as FBL1N (Vendor Line Item Display), FBL3N (G/L Account Line Item Display), or others.
  Debugging: If you have access to debugging tools, you can analyze the program flow to see where the BELNR field is expected and why it is not being populated.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.