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

FB520 - Overview

• 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