How To Fix BK603 - Online parameters can only have the values Space, A, E, or N

BK603 - Overview

• Message type: E = Error

• Message class: BK - Create, Display, Reverse Controlling Document

• Message number: 603

• Message text: Online parameters can only have the values Space, A, E, or N

What causes this issue?

The parameters have the following meanings:
"A" Display the screen
"E" Display only if an error occurs
"N" No display

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BK603 - Online parameters can only have the values Space, A, E, or N ?

  The SAP error message BK603 indicates that there is an issue with the online parameters being used in a transaction or program. Specifically, it states that the online parameters can only have the values Space, A, E, or N. This error typically arises in the context of financial transactions or postings in SAP, particularly in the area of controlling (CO) or financial accounting (FI).
  
  Cause:
  The error is caused by the input of an invalid value for an online parameter in a transaction. The valid values for this parameter are:
  
  Space: No specific value is set.
  A: All items.
  E: Only items with errors.
  N: Only items without errors.
  
  If a user inputs a value other than these (for example, a letter or number that is not one of the specified options), the system will trigger this error message.
  
  Solution:
  To resolve the BK603 error, follow these steps:
  
  
  Check Input Values: Review the input values for the online parameters in