Foot in the door method is the tactic used by a person to make other person agree on the bigger request by first proposing a smaller request.The larger request that is asked afterwards is the actual desired intent of the requester .
Smaller or initial request is just made to achieve acceptance so that at next step bigger request can get a way to receive acceptance as well.This makes it easy to receive approval on intended wish.
A debit memo or a memorandum is kind of a document that records and nonfood a customer of the debit adjustments that are made to either Individual bank accounts and are made for specif purpose. And acts as a commemorate document and these debit notes act as source documents to purchase return journals.