Inactivate supplier

Hello ,

We are not able to Inactivate supplier .

Steps

1) Query the supplier .

2) Select Today's date in Inactive Date field .

3) Save , Successfully .

4) Query the supplier , Inactive Date is no more visible .

5) Login from Different login , Query Same supplier , Inactive Date is missing 

This supplier is not part of merged supplier .

Could you please tell what could be the reason .

Thanks,
Rajiv.