How To Fix /BOBF/CONF128 - Different mapper classes for nodes with same proxy node name &1 found

/BOBF/CONF128 - Overview

• Message type: E = Error

• Message class: /BOBF/CONF -

• Message number: 128

• Message text: Different mapper classes for nodes with same proxy node name &1 found

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /BOBF/CONF128 - Different mapper classes for nodes with same proxy node name &1 found ?

  The SAP error message /BOBF/CONF128 indicates that there are multiple mapper classes defined for nodes that share the same proxy node name in the Business Object Processing Framework (BOPF). This situation can lead to ambiguity in the system, as the framework cannot determine which mapper class to use for the specified node.
  
  Cause:
  The error typically arises from one of the following scenarios:
  
  Duplicate Configuration: There are multiple entries in the configuration for the same node name, leading to conflicting mapper classes.
  Incorrect Customization: Custom developments or modifications may have inadvertently created multiple mapper classes for the same node.
  Transport Issues: If changes were transported from one system to another, it might have led to inconsistencies in the configuration.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Nodes: Determine which nodes are causing the conflict. The error message will usually indicate the specific node name (represented by &1).
  
  
  Check Configuration:
  
  Go to the BOPF configuration in