BU defalted to the Home BU in self service data entry

Hi,

I have an issue where in self service time entry the account number defaults to the HBU instead of the BU entered. Example: Employee has an HBU 0f 100. IN self service time entry we enter 123..2017. The expected result is 123.81207.2017, instead we get 100.81207.2017. The interesting thing here is that in Time entry by the individual it is working properly.

Is this a setting or a bug? Not sure why the account number in the 2 applications will give different results. We are on 9.0.

Thanks