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Message type: E = Error
Message class: SEPM_EXCEPTIONS - EPM: Exception Messages
Message number: 052
Message text: Field '&1' is not a key field
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SEPM_EXCEPTIONS052
- Field '&1' is not a key field ?The SAP error message SEPM_EXCEPTIONS052, which states "Field '&1' is not a key field," typically occurs in the context of SAP's data modeling or when working with the SAP HANA database. This error indicates that a field you are trying to use as a key field in a data model or a query is not defined as a key field in the underlying data structure.
Cause:
- Field Definition: The field you are trying to use is not defined as a key field in the database table or data model. Key fields are essential for uniquely identifying records in a table.
- Data Model Configuration: If you are working with a data model (like an InfoObject in BW or a CDS view), the field may not be included in the key fields of that model.
- Query Design: In query design, if you attempt to use a non-key field in a context that requires a key field (like in certain aggregations or joins), this error can occur.
Solution:
- Check Field Definition: Verify the definition of the field in the underlying database table or data model. Ensure that the field is indeed defined as a key field if it is intended to be used as such.
- Modify Data Model: If you have the necessary permissions, you may need to modify the data model to include the field as a key field. This can involve:
- Editing the InfoObject in BW.
- Adjusting the CDS view definition to include the field in the key.
- Adjust Query: If you are working in a query designer, ensure that you are using the correct key fields as defined in the data model. Replace the non-key field with an appropriate key field.
- Consult Documentation: Review SAP documentation or help resources related to the specific data model or query you are working with for additional guidance.
Related Information:
If the issue persists after checking these aspects, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
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