How To Fix DMC_RT_GEN138 - Read only sender structure &1 is mapped to receiver structure &2

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_GEN - DMC: Nachrichten der Generierungfunktionen

• Message number: 138

• Message text: Read only sender structure &1 is mapped to receiver structure &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_GEN138 - Read only sender structure &1 is mapped to receiver structure &2 ?

  The SAP error message DMC_RT_GEN138 indicates that there is a mapping issue between a sender structure and a receiver structure in the context of data replication or data transfer processes. Specifically, it suggests that the sender structure is read-only and cannot be modified, which is causing a conflict with the mapping to the receiver structure.
  Cause:
  
  Read-Only Sender Structure: The sender structure is defined as read-only, meaning that it cannot be altered or updated during the data transfer process.
  Mapping Issues: There may be a mismatch in the data types, fields, or structure definitions between the sender and receiver, leading to an inability to perform the mapping correctly.
  Configuration Errors: Incorrect configuration in the Data Management Cockpit (DMC) or the data transfer settings may lead to this error.
  Data Source Issues: The data source from which the sender structure is derived may not be configured correctly or may not support the required operations.
  
  Solution:
  
  Check Sender Structure: Verify that the sender structure is indeed read-only and confirm that it is intended to be used in this manner. If modifications are needed, consider using a different structure that allows for changes.
  Review Mapping Configuration: Go through the mapping configuration in the DMC to ensure that the fields and data types between the sender and receiver structures align correctly. Make adjustments as necessary.
  Adjust Data Transfer Settings: If applicable, review the settings for the data transfer process to ensure that they are configured correctly and that the sender structure is compatible with the receiver structure.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling read-only structures and mapping configurations.
  Testing: After making changes, conduct tests to ensure that the data transfer works as expected without triggering the error.
  
  Related Information:
  
  SAP Data Management Cockpit (DMC): This tool is used for managing data replication and transfer processes. Familiarity with its features and configuration options can help in troubleshooting issues like this.
  Data Replication: Understanding how data replication works in SAP, including the roles of sender and receiver structures, can provide insights into resolving mapping issues.
  SAP Notes and Community: Check SAP Notes for any known issues or patches related to this error message. The SAP Community forums can also be a valuable resource for finding solutions shared by other users.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.