proof that a delivery has been made
delivery confirmation
a document which shows how much a customer has to pay, for what and by when
an invoice
the conditions of when a customer should make payment
payment terms
when more time is allowed for something
an extension
the timing and amount of money coming in and going out of a company
cash flow
an official or organisational rule
a regulation
when something doesn't follow the usual rule
an exception
to show someone you are grateful for something they have done
to appreciate
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