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Let's see some ServiceNow Scenario based Interview Questions & Answers here, 1.> How to fetch latest 10 incident records ? var grIncident = new GlideRecord('incident');  gr.orderByDesc('sys_created_on');  gr.setLimit(10);  gr.query();  while (gr.next()) {  gs.print('check the :'+ grIncident.number);   } 2.>How can you populate caller_id in short Description on Problem form? Write Onchange client script on Problem table on change of caller Id field  var caller =g_form.getValue(‘caller_id’);  g_form.setValue(‘short_description’, caller); 3.>How to send notification to the user who is member of assigned group? You can write the below code in Advanced condition of Notification gs.getUser().isMemberOf(current.assignment_group); 4.> How can you populate the only users whose department is “Finance” in caller field on Incident form. Use Simple Reference Qualifier & select “department is “Finance”. You can write the code ...

Let's understand about ServiceNow Reference Qualifier which is quite important topic and  an be used to filter the data on reference field.  What is Reference Qualifier ? Use reference qualifiers to create filters that restrict the data that is returned for a reference field. What are types of Reference Qualifier ? 1.> Simple 2.> Dynamic 3.> Advanced 1.> What is Simple Reference qualifier ? Simple reference qualifiers use AND/OR statements (conditions) to create simple filters.  Ex - Use simple reference qualifiers when filtering on conditions such as whether a company is active, a user has a specific role, and/or a caller is in a specific time zone. 2.> What is Dynamic Reference Qualifier ? Dynamic reference qualifiers enable you to use a dynamic filter option to run a query against a reference field to filter the returned data set.  Ex- you can add dynamic filter created. In dynamic filter, you can call script include as per your requirement. Let's i...

                                                                                                    ServiceNow Interview Questions             1.> what are b est practices for Server Side Scripting? Current.update() should not use in After BR – It’s calling itself over and again.  Don’t use gr as variable in script. Should not use GlideRecord  row count, use GlideAggregate. Use conditions in BR, when to run always. Don’t use global BR, use script include instead of that. Script should not contain hard coded IDs. Don’t enable Business rule on Table transform map until & unless required. Too many workflows should not be checked out. Read ACL should not have GlideRecord/GlideAggregate Com...

Let's try to understand difference b/w  After & Async Business Rule & some examples on Real time scenario of After Business Rule & Async Business Rule : 1.> After BR executes synchronously (It will wait for a result, once result is ready & get displayed then user will get control to do anything, user has to wait) but Async BR executes asynchronously (user will get control immediately, it will not halt the user and result will get displayed when its ready or get response from system, it will be executing in the background as per system scheduler). 2.>After BR is used to update information on related objects that need to be displayed immediately such as GlideRecord queries etc. whereas Async BR is used to update the information on related objects that do not need to be displayed immediately such as calculating metrics & SLA etc. 3.>We can use current & previous objects but We can’t use previous object in Async rule & current ob...

What is Background Script in ServiceNow ? Administrators can run any valid JavaScript that uses the Glide API. The system displays results, information, and error messages at the top of the screen & It can update the huge number of records at once.  Scripts - Background was this magical place in the platform where you could run any server-side script. You can update ‘n’ number of records at once using background script & It is kind of testing ground for any server-side method you wanted to learn about or new script you would like to test because you don’t have to configure When to run logic around it like a Business Rule. Running a script in Scripts - Background was as easy as putting a script in the field and clicking the Run script button.  NOTE: Scripts - Background should be used very carefully and only in non-production environments. Free-form JavaScript can negatively impact data and system performance. Try using Setworkflow(false); & autoSysFields(false...

What is the use of getReference() ? getReference() gets the record used in another reference field. For example you have the requested_for (reference to the sys_user table) and with getReference, you will retrieve the User record and save this as a gliderecord into a variable. Why we use callback function with getReference?  callback function allow you to use asynchronous processing with your getReference call. Example: FetchCompany&phoneNo function onChange(control, oldValue, newValue, isLoading) {    if (isLoading || newValue == '') {       return;    }  var requester_user = g_form.getReference('requested_for', callback); function callback(requester_user) { g_form.setValue('email_id',requester_user.email); g_form.setValue('manager', requester_user.manager); } }