How To Fix /SAPCND/SY_CONFIG161 - External/internal relationship of field &1 to field &2 is not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPCND/SY_CONFIG -

• Message number: 161

• Message text: External/internal relationship of field &1 to field &2 is not possible

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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 /SAPCND/SY_CONFIG161 - External/internal relationship of field &1 to field &2 is not possible ?

  The SAP error message /SAPCND/SY_CONFIG161 indicates that there is an issue with the configuration of the external/internal relationship between two fields in the SAP system. This error typically arises in the context of condition management or when defining relationships between fields in a condition table.
  Cause:
  The error message suggests that the relationship between the specified fields (denoted as &1 and &2) is not valid. This can occur due to several reasons:
  
  Data Type Mismatch: The fields may have incompatible data types (e.g., one is a character field while the other is a numeric field).
  Field Length Issues: The lengths of the fields may not match, which can lead to issues when trying to establish a relationship.
  Field Compatibility: The fields may not be compatible for the type of relationship you are trying to establish (e.g., one field may be a key field while the other is not).
  Configuration Errors: There may be errors in the configuration settings that define how these fields should relate to each other.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  Check Field Definitions: Review the definitions of the fields involved in the error. Ensure that they have compatible data types and lengths.
  Review Configuration Settings: Go to the configuration settings where the relationship is defined and verify that the settings are correct. Make sure that the fields are intended to be related.
  Adjust Field Properties: If necessary, adjust the properties of the fields to ensure they can be related. This may involve changing data types or lengths.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on configuring field relationships correctly.
  Test Changes: After making adjustments, test the configuration to ensure that the error no longer occurs.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO (SAP Project Reference Object) to access configuration settings related to condition management.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.