How To Fix CPE_ERP137 - The attribute &1 is no key field

SAP Error Message - Details

• Message type: E = Error

• Message class: CPE_ERP - CPE - Messages for ERP

• Message number: 137

• Message text: The attribute &1 is no key field

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CPE_ERP137 - The attribute &1 is no key field ?

  The SAP error message CPE_ERP137, which states "The attribute &1 is no key field," typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when working with data models, especially when defining attributes in InfoObjects or when creating queries.
  Cause:
  This error indicates that the attribute specified (represented by &1) is not defined as a key field in the relevant data model or InfoObject. In SAP BW, key fields are essential for uniquely identifying records in a data model, and attributes that are not defined as key fields cannot be used in certain contexts, such as in queries or when trying to create relationships between data objects.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the InfoObject Definition:
  
  Go to the InfoObject maintenance transaction (e.g., RSD1).
  Locate the InfoObject that corresponds to the attribute causing the error.
  Verify if the attribute is defined as a key field. If it is not, you may need to modify the InfoObject to include it as a key field if that is appropriate for your data model.
  
  
  
  Modify the Data Model:
  
  If the attribute should be a key field, you can change its properties in the InfoObject definition.
  If it should not be a key field, ensure that you are not trying to use it in a context that requires a key field.
  
  
  
  Check Query Definitions:
  
  If the error occurs while executing a query, check the query definition in the Query Designer (e.g., RSRT).
  Ensure that the attributes used in the query are correctly defined and that you are not trying to use non-key fields in a way that requires key fields.
  
  
  
  Re-activate the InfoObject:
  
  After making changes to the InfoObject, you may need to re-activate it to ensure that the changes take effect.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for more detailed information on InfoObject attributes and key fields.
  
  
  
  Related Information:
  
  Key Fields: In SAP BW, key fields are used to uniquely identify records in a data model. They are crucial for data integrity and for establishing relationships between different data objects.
  InfoObjects: These are the basic building blocks in SAP BW that define the structure of data. They can be characteristics (dimensions) or key figures (measures).
  Data Modeling: Understanding the principles of data modeling in SAP BW is essential for effectively managing and utilizing data.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP support team or consulting with an SAP BW expert for further assistance.