How To Fix AXT_MODEL206 - 1:1 child table cannot have unmapped key fields (for example, &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_MODEL -

• Message number: 206

• Message text: 1:1 child table cannot have unmapped key fields (for example, &1)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AXT_MODEL206 - 1:1 child table cannot have unmapped key fields (for example, &1) ?

  The SAP error message AXT_MODEL206 indicates that there is an issue with the mapping of key fields in a 1:1 child table relationship. This error typically arises when a child table is expected to have a one-to-one relationship with a parent table, but one or more key fields in the child table are not properly mapped to the corresponding fields in the parent table.
  Cause:
  
  Unmapped Key Fields: The error specifically points out that there are key fields in the child table that are not mapped to any key fields in the parent table. In a 1:1 relationship, every key field in the child must correspond to a key field in the parent.
  Model Configuration Issues: There may be issues in the data model configuration where the relationships between the tables are not correctly defined.
  Data Integrity Issues: If the data integrity is compromised, such as missing or incorrect keys, this error can occur.
  
  Solution:
  
  Check Mapping: Review the data model configuration to ensure that all key fields in the child table are correctly mapped to the corresponding key fields in the parent table. This can usually be done in the data modeler or the relevant configuration transaction.
  Define Relationships: If the relationship is not defined, you may need to explicitly define the 1:1 relationship between the parent and child tables, ensuring that all key fields are included.
  Data Validation: Validate the data in both the parent and child tables to ensure that there are no missing or incorrect key values that could lead to this error.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on configuring 1:1 relationships and mapping key fields.
  
  Related Information:
  
  Data Modeler: Use the SAP Data Modeler or relevant tools to visualize and edit the relationships between tables.
  Transaction Codes: Familiarize yourself with transaction codes related to data modeling and configuration, such as SE11 (Data Dictionary) or SE80 (Object Navigator).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the AXT_MODEL206 error and ensure that your data model is correctly configured.