Activity › Forums › Salesforce® Discussions › What is a Callout in Salesforce? Tagged: Apex Callouts, Callout, JSON, JSON Format, Salesforce Application, Salesforce SOAP API, XML, XML Format Salesforce® Discussions What is a Callout in Salesforce? Posted by Shubham on January 27, 2020 at 8:35 AM What is a Salesforce Callout, and what are it’s implementation? Anuj replied 6 years, 3 months ago 2 Members · 1 Reply Apex CalloutsCalloutJSONJSON FormatSalesforce ApplicationSalesforce SOAP APIXMLXML Format 1 Reply Anuj Member January 27, 2020 at 1:14 PM Hi Shubham, Apex callout is used to integrate Salesforce application with other application . Salesforce provide Two types of Services to do that. 1.SOAP API uses WSDL file to store information in the form of XML . 2.REST API uses HTTP protocols to send request to other application and Recieve information from Other applications in the JSON format and XML both. Log In to reply. Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me