How To Fix FWTR108 - Class & not permitted as underlying transaction

FWTR108 - Overview

• Message type: E = Error

• Message class: FWTR - Securities Transaction Management

• Message number: 108

• Message text: Class & not permitted as underlying transaction

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.

FWTR108 - Details

• The SAP error message FWTR108 indicates that a specific class is not permitted as an underlying transaction. This error typically arises in the context of financial transactions, particularly when dealing with the posting of documents or when trying to execute certain financial operations that involve class-based transactions.
  
  Cause:
  The error can occur due to several reasons:
  
  
  Configuration Issues: The class in question may not be properly configured in the system to allow for the underlying transaction.
  Authorization Problems: The user may not have the necessary authorizations to perform the transaction with the specified class.
  Transaction Type Restrictions: Certain transaction types may have restrictions on which classes can be used as underlying transactions.
  Custom Development: If there are custom developments or enhancements in the system, they may inadvertently restrict the use of certain classes.
  
  
  Solution:
  To resolve the FWTR108 error, you can take the following steps:
  
  
  Check Configuration:
  
  Review the configuration settings for the class in question. Ensure that it is