Canvass (business)
Encyclopedia
Canvass is a period of time when the customer
Customer
A customer is usually used to refer to a current or potential buyer or user of the products of an individual or organization, called the supplier, seller, or vendor. This is typically through purchasing or renting goods or services...

 is visited by the seller (or agent) in a customer premise. This happen periodically or occasionally. This may refer to many operations like visiting for orders, to release a new software at the end of a project, or to install a new machinery.
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