Nowadays there is an API Integration in almost every org. The main purpose of integration with another service is to avoid reinventing the wheel. However, the development effort that is required to integrate with services is a complex and time-consuming venture.
It reduces speed to market, but it also saps developer energy that is better spent in the front end, building the features that will really differentiate their app. With external services salesforce makes this a lot easier and admin friendly.
With salesforce external services you can connect to any service that you want to, invoke methods based on the external source via a flow all with the help of an easy-to-use wizard. Declarative tools are used to import API definitions right into Salesforce. Continue reading