How To Fix DT487 - & not implementing key width feature; table will not be created

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 487

• Message text: & not implementing key width feature; table will not be created

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT487 - & not implementing key width feature; table will not be created ?

  The SAP error message DT487 indicates that there is an issue related to the key width feature in the Data Dictionary (DDIC) when trying to create a database table. This error typically arises when the system is unable to implement the key width feature for a table, which is necessary for certain types of database operations.
  Cause of Error DT487
  
  Key Width Feature Not Supported: The key width feature is not supported for the specific database or configuration you are using. This can happen if the database does not support certain data types or if the table definition is incompatible with the key width feature.
  Table Definition Issues: There may be issues in the table definition itself, such as incorrect data types, missing primary keys, or other constraints that prevent the table from being created with the desired key width.
  Database Version: The version of the database you are using may not support the key width feature, especially if it is an older version or if there are specific limitations in the database configuration.
  
  Solution
  
  Review Table Definition: Check the table definition in the Data Dictionary (SE11) to ensure that all fields are correctly defined, and that there is a primary key defined for the table. Make sure that the data types used are compatible with the key width feature.
  Database Compatibility: Verify that the database you are using supports the key width feature. If it does not, you may need to adjust your table design or consider using a different database that supports this feature.
  Adjust Key Width Settings: If applicable, you may need to adjust the settings related to key width in the Data Dictionary. This can involve changing the way keys are defined or modifying the table structure to comply with the requirements of the key width feature.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SAP and the database you are using. There may be specific guidelines or limitations that you need to follow.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They may provide insights or patches that can resolve the issue.
  
  Related Information
  
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), and SE37 (Function Builder) to analyze and modify the table definitions.
  SAP Notes: Check for relevant SAP Notes that may address this specific error or provide additional context on the key width feature and its limitations.
  Database Documentation: Review the documentation for the specific database you are using (e.g., HANA, Oracle, SQL Server) to understand its compatibility with SAP features.
  
  By following these steps, you should be able to identify the cause of the DT487 error and implement a solution to resolve it.