How To Fix DC1303 - You have selected too many fields as key fields

DC1303 - Overview

• Message type: E = Error

• Message class: DC1 - BDT-DC Messages

• Message number: 303

• Message text: You have selected too many fields as key fields

What causes this issue?

You have marked too many fields as key fields. The system only allows
one key field or none.

System Response

The wizard is waiting for you to correct this.

How to fix this error?

Reduce the number of fields marked as key fields to a maximum of one.

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 DC1303 - You have selected too many fields as key fields ?

  The SAP error message DC1303, which states "You have selected too many fields as key fields," typically occurs when you are trying to define a database table or a data structure in SAP and you have selected more key fields than the system allows.
  
  Cause:
  
  Exceeding Key Field Limit: In SAP, there is a limit to the number of key fields that can be defined for a table or structure. This limit is usually set to 16 key fields for database tables. If you attempt to select more than this limit, you will encounter the DC1303 error.
  Incorrect Table Design: The design of the table or structure may not be optimal, leading to an excessive number of key fields being selected.
  
  
  Solution:
  
  Review Key Fields: Go back to the table or structure definition and review the fields you have selected as key fields. Determine if all of them are necessary for uniquely identifying a record.
  Reduce