Site properties :

provider.module.external.voucher.enabled=true

customer.module.government.activekids.enabled=true

customer.module.government.creativekids.enabled=true

customer.module.view.submitted.external.vouchers=true

CUSTOMER PROPERTIES:

EXTERNAL_VOUCHER_APPLY_TO_INVOICE_ENABLED true

customer.module.home.show.shortcuts=true
this is to display buttons on the voucher - refer pacific hills or mmtc