How To Fix TK320 - Key entry for table &1 may only be generic

SAP Error Message - Details

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 320

• Message text: Key entry for table &1 may only be generic

What causes this issue?

For technical reasons, you cannot specify the table key of table &V1&
in its full length. Instead you must specify it generically. There are
two possible reasons for this:
Table keys with packed fields or fields of type I can only be specified
up to the first of these key fields.
The key is longer than allowed by the Change and Transport System (120
characters).

System Response

How to fix this error?

RESET N1
Make sure that you only specify the character fields before the first
non-character key field. You must enter the key with a generic ending.
Enter the generic symbol directly after the specified part of the key.
You must enter the generic symbol at the latest in the 120th character
of the key.

Error message extract from SAP system. Copyright SAP SE.