Follow below guideline to call SuiteCRM or SugarCRM services from postman.
Enter endpoint url. If there is any customization in service then url would be www.xyz.com/custom/service/v4_1_custom/rest.php else endpoint url would be www.xyz.com/service/v4_1/rest.php. In case of SugarCRM version will be different.
Request will be of POST type.
Go to Body tab and select option ‘application/x-www-form-urlencoded’.
Add values in key ‘Method’, ‘input_type’, ‘response_type’ and ‘rest_data’.