Answer: spot buy approach
Explanation: when an internal customer has a need that comes up suddenly and was not earlier planned for, or an existing supplier identified to provide for that demand, such situations are usually handled using a spot buy approach.
Spot buying is usually made up of small orders that are totally unplanned, and may arise due to poor planning, from unexpected or unavoidable circumstances, or one-time opportunities, and are most times carried out on an immediate payment and delivery basis.
Spot buying often feature the following characteristics:
1. they are usually unplanned and are for emergencies.
2. They are for unique inexpensive purchase and involves not so complex transactions.