How To Fix AD054 - Table & has more than & key fields

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 054

• Message text: Table & has more than & key fields

What causes this issue?

This table has too many key fields.

System Response

The table is not activated.

How to fix this error?

Use fewer key fields than specified. Keep in mind that with a global
temporary table fewer key fields are possible than with a transparent
table.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD054 - Table & has more than & key fields ?

  The SAP error message AD054 indicates that a table has more key fields than the system allows. This typically occurs when you are trying to create or modify a database table in the Data Dictionary (SE11) and the number of key fields exceeds the maximum limit set by the SAP system.
  Cause:
  The error arises because:
  
  The number of key fields defined for a table exceeds the maximum allowed limit. In SAP, the maximum number of key fields for a table is generally 16.
  You may be trying to create a table with a complex key structure that is not supported by the system.
  
  Solution:
  To resolve the AD054 error, you can take the following steps:
  
  
  Review Key Fields: Check the number of key fields you have defined for the table. If it exceeds the limit, you will need to reduce the number of key fields.
  
  
  Optimize Key Fields: Consider whether all the key fields are necessary. You may be able to combine some fields or use a different approach to uniquely identify records in the table.
  
  
  Use Alternative Structures: If you need to maintain a complex key structure, consider using a different design pattern, such as:
  
  Creating a separate table to hold some of the key fields and linking it to the main table.
  Using a composite key that combines multiple fields into a single key field.
  
  
  
  Consult Documentation: Refer to SAP documentation or guidelines regarding table design and key field limitations to ensure compliance with best practices.
  
  
  Testing: After making changes, test the table creation or modification process to ensure that the error is resolved.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE11 (Data Dictionary) to view and modify table definitions.
  SAP Notes: Check SAP Notes for any specific updates or patches related to this error message.
  Performance Considerations: Keep in mind that having too many key fields can impact performance, so it's essential to strike a balance between uniqueness and efficiency.
  
  By following these steps, you should be able to resolve the AD054 error and successfully create or modify your table in SAP.