How To Fix TR191 - The key must be generic because the table key is longer than 120

SAP Error Message - Details

• Message type: E = Error

• Message class: TR - Change and Transport System

• Message number: 191

• Message text: The key must be generic because the table key is longer than 120

What causes this issue?

A fully qualified table key was specified for table "&V&". (exactly one
key was specified). However, only a length of up to 120 characters is
allowed. The length of the table key is &V2&.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

The key description is: "&V3&".

System Response

The entry was rejected.

How to fix this error?

Describe the key area generically.
To do this, enter the character to be replaced, <LB>/*</>, at the end
of the key description.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TR191 - The key must be generic because the table key is longer than 120 ?

  The SAP error message TR191 indicates that there is an issue with the key length of a table in the context of transport requests. Specifically, it means that the key you are trying to use is too long, exceeding the maximum allowed length of 120 characters. This typically occurs when you are working with transport requests, especially when dealing with customizing or development objects.
  Cause:
  
  
  Key Length Exceeded: The primary cause of this error is that the key you are trying to use for a transport request is longer than the allowed limit of 120 characters. This can happen if you are trying to transport a large number of objects or if the naming conventions used for the objects are too lengthy.
  
  
  Non-generic Key: The error message suggests that the key must be generic. This means that the key should not be specific to a particular instance or object but should be more general to fit within the constraints.
  
  
  Solution:
  
  
  Review Object Names: Check the names of the objects you are trying to transport. If they are too long, consider renaming them to shorter, more generic names that still convey the necessary information.
  
  
  Use Generic Keys: If possible, modify the transport request to use a more generic key. This may involve changing the way you are grouping objects or selecting them for transport.
  
  
  Split Transport Requests: If you are trying to transport a large number of objects, consider splitting them into multiple transport requests. This can help ensure that the key length remains within the allowed limit.
  
  
  Check Custom Code: If you have custom code or enhancements that are generating keys, review that code to ensure it adheres to the key length restrictions.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to transport requests and key management for any specific guidelines or best practices.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling transport requests and key management.
  Transport Management System (TMS): Familiarize yourself with the Transport Management System in SAP, as it provides tools and options for managing transport requests effectively.
  Key Naming Conventions: Establish and follow naming conventions for objects in your SAP system to avoid future issues with key lengths.
  
  If the problem persists after trying these solutions, consider reaching out to your SAP Basis team or SAP support for further assistance.