Authorise the Payment!
To start with, I will give a brief and simple definition of payment authorisation below:
Payment authorization is when an issuing bank gives the green light on a transaction, confirming it's prepared to release funds from the customer's account. But before this authorization is granted, the issuing bank conducts thorough checks. Link
Prior to a transaction being completed, payment authorization is the process of getting the customer's financial institution or credit card company's approval. It entails confirming the client has the money or credit to cover the purchase. Link
This is a very common and compulsory procedure before payment is made, authorisation is necessary for its completion. This is mostly done for security reasons because there are those that involve themselves in illegal transactions by stealing people's pay but this authorisation stands as a barrier to them from stealing.
These authorisation can be in the form of codes or specific instructions to the bank before payments are made successful.
You can also participate by clicking on this link