How To Fix BUX_EEW001 - Enter only one field as "Key Field"

BUX_EEW001 - Overview

• Message type: E = Error

• Message class: BUX_EEW - Message Class for generic wizard for BP ABA 7.0

• Message number: 001

• Message text: Enter only one field as "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.

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BUX_EEW001 - Details

• The SAP error message BUX_EEW001 ("Enter only one field as 'Key Field'") typically occurs in the context of the SAP Business Object Processing Framework (BOPF) or when working with certain data models in SAP. This error indicates that the system expects only one field to be designated as a "Key Field" in a particular context, but more than one field has been marked as such.
  
  Cause:
  
  Multiple Key Fields Defined: The most common cause of this error is that the user has defined multiple fields as key fields in a data model or configuration where only one is allowed.
  Incorrect Configuration: This can happen during the configuration of a BOPF object or when setting up a data model in transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator).
  Data Model Design: In some cases, the design of the data model may not align with the expected structure, leading to multiple fields being incorrectly