Freight condition in scheduling agreement

Hi,

I am working with freight condition in scheduling agreement.  I had done the configuration. At first, it seems to be working and then I see some issues where the freight is not coming or coming twice.

Here what I did to configure it ..

1. Use the freight condition ZFRA which is working fine in normal PO scenario and add it in supplement pricing schema.
2. Assign the supplement pricing schema to freight condition ZFRA in master data tab.

Also, the doc type for scheduling agreement is marked for time dependent conditions. The condition ZFRA is marked for Accruals in control data
2 tabs.

I would like to know If I can use the same freight condition in both regular schema and supplement schema.
I noticed that even when I enter the freight condition manually in scheduling agreement, the system is reading the condition record meant for
normal PO scenario.  This is causing duplication of freight at Goods receipt.

If the above settings are not correct, Please let me know the proper way to configure the freight condition in scheduling agreement.  As I mentioned already, the same freight condition  in normal PO scenario is working fine.

Thanks,

Abdul