How To Fix FB108 - Trans. &: Transaction code & is not defined in table T020

SAP Error Message - Details

• Message type: E = Error

• Message class: FB - Batch Programs

• Message number: 108

• Message text: Trans. &: Transaction code & is not defined in table T020

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FB108 - Trans. &: Transaction code & is not defined in table T020 ?

  The SAP error message FB108 indicates that a specific transaction code is not defined in the table T020. This table is used to define the transaction codes that are allowed for certain financial operations, particularly in the context of document posting and financial transactions.
  Cause:
  
  Missing Transaction Code: The transaction code you are trying to use is not defined in the T020 table. This could happen if the transaction code is custom or if it has not been properly configured in the system.
  Authorization Issues: Sometimes, the transaction code may exist, but the user does not have the necessary authorizations to execute it.
  Configuration Issues: The system may not be properly configured to recognize the transaction code due to missing entries or incorrect settings.
  
  Solution:
  
  
  Check T020 Table: 
  
  Go to transaction SE11 (Data Dictionary) and enter the table name T020. Check if the transaction code you are trying to use is listed there.
  If it is not listed, you may need to add it. This typically requires access to configuration settings and should be done by someone with the appropriate authorizations (like a SAP Basis or FI consultant).
  
  
  
  Add Transaction Code:
  
  If you have the necessary permissions, you can add the transaction code to the T020 table. This usually involves:
  
  Identifying the correct transaction code.
  Adding it to the T020 table with the appropriate settings.
  
  
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to execute the transaction code. This can be checked in transaction SU53 (Authorization Check) after the error occurs.
  If the user lacks the necessary authorizations, you may need to work with your security team to grant the appropriate access.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or consult with your SAP support team for any specific configurations related to the transaction code in question.
  
  
  
  System Configuration: 
  
  If the transaction code is part of a custom development or enhancement, ensure that all related configurations are correctly set up.
  
  
  
  Related Information:
  
  Transaction Codes: Transaction codes in SAP are shortcuts to access specific functions or screens. Each transaction code must be defined in the system for it to be usable.
  T020 Table: This table contains the mapping of transaction codes to their respective functionalities in the financial module of SAP.
  Authorization Objects: SAP uses authorization objects to control access to various transactions. Each transaction code may be linked to specific authorization objects that need to be assigned to user roles.
  
  If you continue to experience issues after checking these areas, it may be beneficial to reach out to your SAP support team or consult SAP Notes for any known issues related to the specific transaction code.