Where defined exchange rate type other than M in PO print out?

Dear Experts,

We are basically using exchange rate type 'M' for all imports. But at the time of PO print the system is showing error message as " Enter rate JPY/INR rate type ZCIG for 24.02.2016 in system settings". When you check long text of the error message and click on perform action, then it is going to t.code OB08. But we do not want maintain exchange rate type ZCIG. And also our ABAPer tried to find out where the exchange rate type ZCIG maintained in the PO print program. But no luck. Please provide your expertise where we can find out the exchange rate type ZCIG maintained in the configuration or in program.

Thanks in Advance.

Regards,

Mukthar