SES is not created with reference to the WO, it is created with reference to the PO.
The PR from the WO has to be converted to PO.
As and when the work is performed the personal has to enter the times in the CATS with reference to the PO and the maintenance WO.
The CATS-PM transfer job needs to run periodically to generate confirmations. and CATS-MM transfer job needs to run for periodically update the SES.
Ramesh-