How To Fix TK264 - You cannot switch to maintenance mode

SAP Error Message - Details

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 264

• Message text: You cannot switch to maintenance mode

What causes this issue?

You cannot switch to maintenance mode because the request
Has already been released -or-
Is assigned to another user.

System Response

The system does not switch to maintenance mode.

How to fix this error?

After consulting with the owner of the request, you can enter yourself
as the new request owner using the <LS>Change user name</> function in
transaction SE01, and then maintain the request.

Error message extract from SAP system. Copyright SAP SE.