How To Fix RP998 - Value is not allowed (T578W)

RP998 - Overview

• Message type: E = Error

• Message class: RP - Error Messages for Infotype Module Pools

• Message number: 998

• Message text: Value is not allowed (T578W)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RP998 - Value is not allowed (T578W) ?

  The SAP error message RP998 with the description "Value is not allowed (T578W)" typically occurs in the context of payroll processing, particularly when dealing with wage types or infotypes that have specific validation rules. The error indicates that a value being processed does not meet the criteria defined in the configuration table T578W.
  
  Cause:
  
  Invalid Wage Type: The wage type being processed may not be valid for the specific payroll run or employee group.
  
  Configuration Issues: There may be issues in the configuration of wage types in the T578W table, which defines the allowed values for various wage types.
  Data Entry Errors: Incorrect data entry in infotypes or payroll results can lead to this error.
  Missing Authorizations: Sometimes, the user may not have the necessary authorizations to process certain wage types.
  
  
  Solution:
  
  
  Check Wage Type Configuration:
  
  Go to transaction code SM30 or SM31 and view the T578W table.
  Verify that the wage type being processed is correctly configured and