Payslip error in portal

Hi All

I have done IMG settings for ESS payslip in Benefits and payments according to payroll areas specifying the variants for each payroll area.

When i try to view the payslip in portal, i am getting an error saying "ZU00 does not exist" (ZU00 is the varaint created)

where as the same variant is used in PC00_M40_CEDT transaction for execution and payslip is generated perfectly.

can anyone please tell me what could be the reason for this kind of error in portal?

what is the correct way of assigning variants to respective payroll areas within one company code(MOLGA)?

Regards

Asha