How To Fix FWTR066 - Prod. type cannot be used as underlying because more than one trans type

FWTR066 - Overview

• Message type: E = Error

• Message class: FWTR - Securities Transaction Management

• Message number: 066

• Message text: Prod. type cannot be used as underlying because more than one trans type

Self-Explanatory Message

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FWTR066 - Details

• The SAP error message FWTR066 indicates that a production type cannot be used as an underlying type because there is more than one transaction type associated with it. This typically occurs in the context of SAP's Financial Accounting (FI) or Controlling (CO) modules, particularly when dealing with production orders, cost centers, or internal orders.
  
  Cause:
  The error arises when:
  
  Multiple Transaction Types: The production type you are trying to use is linked to multiple transaction types in the system. This can happen if the production type is configured to handle different types of transactions (e.g., different cost elements or different accounting treatments).
  
  Configuration Issues: There may be a configuration issue in the production type settings or in the transaction type settings that leads to this conflict.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Production Type Configuration:
  
  Go to the configuration settings for the production type in SAP (Transaction code: OPL8 or similar).
  Verify the