RMS v2 + Hotfix 40 / Prevent customer to make purchases

Hi folks,

Running RMS v2 + Hotfix 40, how can we prevent customers to make purchases at the POS?

I don't want to delete the customer yet, just temporarily "deactivate" it.

I tried setting the GlobalCustomer off at the HQ level, but it does not prevent selling at the POS level.

Any ideas would be really appreciated.

Thanks,

...Alex