How To Fix FB520 - Parameter combination is not permitted; correct entry

SAP Error Message - Details

• Message type: E = Error

• Message class: FB - Batch Programs

• Message number: 520

• Message text: Parameter combination is not permitted; correct entry

What causes this issue?

The parameters "Accounts not posted to" and "Not posted to since"
should only be used in conjunction with one another. You have only made
an entry for one of the parameters.

System Response

Termination of processing.

How to fix this error?

Please correct your entry. To use these parameters, make an entry other
than blank in the "Accounts not posted to" parameter and enter a fiscal
year in the "Not posted to since" parameter.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FB520 - Parameter combination is not permitted; correct entry ?

  The SAP error message FB520, which states "Parameter combination is not permitted; correct entry," typically occurs when there is an issue with the parameters or data entered in a financial transaction, particularly in the context of posting documents in the Financial Accounting (FI) module. This error can arise due to various reasons, including incorrect account assignments, missing configuration, or invalid combinations of account types and transaction types.
  Causes of FB520 Error
  
  
  Invalid Account Combination: The combination of accounts being used in the transaction may not be allowed. For example, you might be trying to post to a balance sheet account when a profit and loss account is expected.
  
  
  Missing Configuration: Certain configurations in the SAP system may not be set up correctly. This could include missing account determination settings or incorrect settings in the financial document types.
  
  
  Posting Keys: The posting keys used in the transaction may not be compatible with the account types or the transaction type being processed.
  
  
  Document Type Restrictions: The document type being used may have restrictions on the types of accounts that can be posted to.
  
  
  Account Group Settings: The account group settings may restrict certain types of postings or combinations.
  
  
  Solutions to FB520 Error
  
  
  Check Account Combinations: Review the accounts being used in the transaction. Ensure that the combination of accounts is valid and permitted for the type of transaction you are trying to post.
  
  
  Review Configuration Settings: Check the configuration settings in the SAP system related to account determination, document types, and posting keys. Ensure that they are set up correctly to allow the transaction you are attempting.
  
  
  Use Correct Posting Keys: Verify that the posting keys used in the transaction are appropriate for the accounts involved. Different posting keys are used for different types of transactions (e.g., debit vs. credit).
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the error message and the parameters involved. This can provide insights into what combinations are allowed.
  
  
  Test with Different Data: If possible, try posting with different account combinations or document types to identify what specifically is causing the error.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB50 (Enter G/L Account Document), FB01 (Post Document), and others that may be related to the posting process.
  SAP Notes: Check SAP Notes for any known issues or patches related to the FB520 error.
  User Authorization: Ensure that the user has the necessary authorizations to perform the transaction, as restrictions can also lead to errors.
  
  By following these steps, you should be able to diagnose and resolve the FB520 error in SAP.