How To Fix DT808 - Field & is contained in the key of the table

DT808 - Overview

• Message type: E = Error

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

• Message number: 808

• Message text: Field & is contained in the key of the table

What causes this issue?

The field involved is contained in the old version of the table as a
non-key field and in the new version as a key field.

System Response

From now on the field is handled as a key field of the table.

How to fix this error?

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 DT808 - Field & is contained in the key of the table ?

  The SAP error message DT808 typically indicates that a field is contained in the key of a table, which means that the field you are trying to modify or use in a certain context is part of the primary key of a database table. This can occur in various scenarios, such as when you are trying to change the structure of a table, create a new entry, or modify an existing entry.
  
  Cause:
  
  Primary Key Constraint: The field you are trying to modify is part of the primary key of the table. In SAP, primary keys are used to uniquely identify records in a table, and certain operations (like changing the value of a key field) are restricted.
  Data Integrity: SAP enforces data integrity rules, and modifying key fields can lead to inconsistencies in the database.
  
  
  Solution:
  
  Avoid Modifying Key Fields: If you are trying to change the value of a key field, consider whether