How To Fix AXT_RUNTIME_MESSAGES042 - You can only specify a default value or a mapping, not both

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_RUNTIME_MESSAGES - Extensibiltiy Runtime Messages

• Message number: 042

• Message text: You can only specify a default value or a mapping, not both

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AXT_RUNTIME_MESSAGES042 - You can only specify a default value or a mapping, not both ?

  The SAP error message AXT_RUNTIME_MESSAGES042, which states "You can only specify a default value or a mapping, not both," typically occurs in the context of data transformation or mapping processes, particularly when using SAP Data Services or similar tools. This error indicates a conflict in the configuration of a data flow where both a default value and a mapping are being specified for the same field, which is not allowed.
  
  Cause:
  The error arises when:
  
  You are trying to set a default value for a field while simultaneously trying to map that same field from another source or transformation.
  The system does not allow both a default value and a mapping to be defined for a single field because it creates ambiguity about which value should be used.
  
  
  Solution:
  To resolve this error, you need to review the configuration of the data flow or transformation where the error is occurring. Here are the steps to fix