How To Fix 0K302 - Extract key was not completely specified (field: & )

SAP Error Message - Details

• Message type: E = Error

• Message class: 0K - Messages for "General List Modules"

• Message number: 302

• Message text: Extract key was not completely specified (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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message 0K302 - Extract key was not completely specified (field: & ) ?

  The SAP error message 0K302 indicates that an extract key was not completely specified for a certain field in the context of data extraction, typically related to SAP BW (Business Warehouse) or data extraction processes. This error usually arises when the system expects a complete set of key fields to be defined for a data extraction process, but one or more fields are missing or not properly configured.
  Cause:
  
  Incomplete Key Specification: The extract key for the data source is not fully defined. This could mean that one or more required fields are missing from the extraction setup.
  Configuration Issues: There may be issues in the configuration of the InfoSource, DataSource, or the underlying data model that leads to incomplete key definitions.
  DataSource Changes: If the DataSource has been modified (e.g., fields added or removed), it may lead to inconsistencies in the extraction key.
  Field Mapping Issues: There could be problems with how fields are mapped between the source and target systems.
  
  Solution:
  
  Check DataSource Configuration: Go to the DataSource in the SAP BW system and verify that all required fields are included in the extract key. Ensure that the key fields are correctly defined.
  Review InfoSource Settings: If you are using an InfoSource, check its settings to ensure that the key fields are properly mapped and configured.
  Update Field Mapping: If there have been changes to the DataSource or InfoSource, update the field mappings accordingly to ensure that all necessary fields are included.
  Re-activate DataSource: Sometimes, re-activating the DataSource can resolve issues related to configuration changes. This can be done in the Data Warehousing Workbench.
  Check for Notes and Patches: Look for any SAP Notes or patches that might address known issues related to this error message. Applying relevant updates can sometimes resolve configuration-related problems.
  Consult Documentation: Review SAP documentation or guides related to the specific DataSource or InfoSource you are working with to ensure compliance with best practices.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like RSA1 (Data Warehousing Workbench) to access and modify DataSources and InfoSources.
  SAP Notes: Search the SAP Support Portal for notes related to error 0K302 for any specific fixes or recommendations.
  Data Extraction Process: Familiarize yourself with the data extraction process in SAP BW, including how to define and manage extractors, InfoObjects, and InfoProviders.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it. If the issue persists, consider reaching out to SAP support for further assistance.