How To Fix GZ166 - Incorrect list type; only 1-3 possible

SAP Error Message - Details

• Message type: E = Error

• Message class: GZ - Message class for FI-LC

• Message number: 166

• Message text: Incorrect list type; only 1-3 possible

What causes this issue?

The list type is invalid.

System Response

Error message

How to fix this error?

Please enter list type 1, 2 or 3.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GZ166 - Incorrect list type; only 1-3 possible ?

  The SAP error message GZ166, which states "Incorrect list type; only 1-3 possible," typically occurs in the context of inventory management or material management when a user is trying to generate a report or list that requires a specific type of input.
  Cause:
  The error is caused by the user attempting to select a list type that is not valid for the operation they are trying to perform. In SAP, certain functions or reports may only accept specific list types (1, 2, or 3), and if a user inputs a different value, the system will trigger this error.
  Solution:
  To resolve the GZ166 error, follow these steps:
  
  
  Check Input Values: Ensure that you are entering a valid list type. The acceptable values are typically:
  
  1: List type 1
  2: List type 2
  3: List type 3
  
  
  
  Refer to Documentation: Consult the SAP documentation or help files related to the specific transaction or report you are using to understand the valid list types.
  
  
  Correct the Input: If you have mistakenly entered an invalid list type, correct it to one of the valid options (1, 2, or 3) and try executing the report or transaction again.
  
  
  Check User Authorizations: In some cases, the error may also arise due to insufficient authorizations to access certain list types. Ensure that your user role has the necessary permissions.
  
  
  Consult with SAP Support: If you continue to experience issues after verifying the input and permissions, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error.
  
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to inventory management, such as MB51 (Material Document List) or MMBE (Stock Overview).
  SAP Notes: Check SAP Notes for any updates or patches that may address this error.
  User Training: Ensure that users are trained on the correct usage of list types in the relevant transactions to prevent future occurrences of this error.
  
  By following these steps, you should be able to resolve the GZ166 error and successfully generate the desired report or list in SAP.