Diagnosis
You tried to convert the screen to an include screen (subscreen).However, the OK_CODE element of the screen already has a name.
The OK_CODE field is not available in a subscreen. Instead, functioncodes are passed back to the OK_CODE field of the main screen. If youused the name of the OK_CODE field in the modules of the subscreen, itwould refer to an undefined value.

System Response
The system cannot convert the screen into a subscreen.

Procedure
In the element list, delete the name of the OK_CODE field (byoverwriting it with spaces). Check as well whether you have used thisname in the screen modules to evaluate the OK_CODE, and change theprogram logic accordingly. You can then return to the screen attributesscreen and repeat the operation.