How To Fix TK294 - & is not a valid client

SAP Error Message - Details

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 294

• Message text: & is not a valid client

What causes this issue?

A key with client "&V1&" was specified for table "&V2&". This is not a
valid client.
Field "&V4&" is concerned.

System Response

The system rejects the entry.

How to fix this error?

Enter a valid client. This is usually the source client of the request
or task "&V3&".
Valid clients are listed in table T000.

Error message extract from SAP system. Copyright SAP SE.