Update

1// Create a Map to store all the data of a Contact 2Map<String, Object> contactMap = new Map<String, Object>(); 3 contactMap.put('ContactID', '950f2525-14a8-4871-8348-980d6b9c5757'); 4 contactMap.put('Name', 'Breadwinner Inc'); 5 contactMap.put('SkypeUserName', 'jack.Rogers'); 6 7// Initializing the RequestJSON Data to be passed. 8Map<String, Object> requestJSONMap = new Map<String, Object>(); 9 requestJSONMap.put('contacts', new List<Object>{contactMap}); 10 String reqJSON = JSON.serialize(requestJSONMap); 11 12Map<String, Object> reqObj = new Map<String, Object>(); 13 reqObj.put('version', '1.0'); 14 reqObj.put('action', 'updateContact'); 15 reqObj.put('requestJSON', reqJSON); 16 //Required, if Xero Multi-Org is enabled in Breadwinner. 17 reqObj.put('xeroOrgId', '!aa00TM'); 18 19// Placing a request to Breadwinner Global API 20Map<String, Object> respMap = bread_winner.BreadwinnerXeroAPI.call(reqObj); 21System.debug(respMap);