Sentence examples similar to payment must be mandatory from inspiring English sources

2) The interface indicates which data must be mandatory filled.

There are some concerns about who exactly must be mandatory reporters.

Independent ethical review of experimental studies in humans must be mandatory.

Payment must be made in advance.

In other words, payment must be upfront.

Payment must be made by credit card.

Payment must be received by that date.

Such payments must be deferred for five years.

Removal of e-payment costs: Merchant Discount Rates and convenience charges associated with e-payments must be reduced.

Fiscal corrections: indirect taxes (e.g. VAT), subsidies and pure transfer payments (e.g. social security payments) must be deducted.

Pre-payment must be made.