Use Case: I aspire to begin my career as a ServiceNow Developer. What steps should I take to initiate this journey, and what specific areas should I focus on progressively? We possess a variety of videos, articles, and blogs that facilitate reading and learning; however, they do not provide nutshell guidance on how to begin the step-by-step process of becoming a developer a simplified manner.
Solution: The steps, namely step1, step2, step3 and Step4, are elaborated upon in detail in the subsequent sections. By adhering to these steps, you will progress systematically to address the prerequisites necessary for your transformation into a developer.
Step 1: To initiate your transformation into a developer, your primary focus should be on the tables, fields, and their interrelationships. There is an option available to comprehend the table relationships through 'System Definition > Tables'. All complete table relationships and fields are stored and managed in this location. The tables listed below are utilized within ServiceNow, with each serving distinct purposes. Utilize your personal instance of ServiceNow or the non-production environment of your business instance to create the necessary tables and fields, thereby enhancing your confidence.
Step 2: The 'Background Script' or 'Fix Script' aids in learning coding within ServiceNow. Simple coding practices consistently enhance your confidence to progress further. The console window enables you to write and execute your script independently. If you notice or identify any issues, you can effortlessly revert the changes with a single click.
Scripting for Tables/Forms & Fields
To evolve into a 'Traditional Developer', it is essential to thoroughly learn 'Server Side' scripting. This knowledge will aid you in implementing Business Rules, UI Actions, Script Includes, and Scheduled Jobs.
- Business Rule - This will define the actions to create or update when the button is clicked.
- Script Include - Scripts are consistently written as functions. Defining the function and calling it in a recursive manner is considered best practice.
- UI Action - Facilitates the creation of form buttons, list buttons, and links
- Schedule Jobs - It enables the execution of scripts according to a specified timeframe.
Learn the above all items as an one bundle and be strong of the server side programming. - Client Script - Facilitates user interface validation prior to submitting the record
- UI Page - The dialog boxes are established and managed using HTML and ServiceNow function codes.
- Access Control - Enables the definition of restrictions based on roles and groups.
- User Interfaces validation you should learn as a bundle and complete the client side programming.
- UI and Data Policies serve as supplementary measures to enhance the client-side solution through configuration.
Whenever you wish to bypass and substitute the client script, you can implement this configuration solution. Script execution consistently diminishes the performance of your instance. It is advisable to consider how to eliminate client scripts and replace them with UI and Data Policies.
Step 3: ServiceNow has alleviated developer challenges by utilizing the capabilities of 'Integration Hub - Flow Designer'. The flows, Sub flows, and Actions serve as the core elements of the Flow Designer components. Primarily, these items facilitate the achievement of Low Code and No Code functionalities.
In Pro Code scenarios, the complexity of business requirements dictates the approach. Nevertheless, it can be managed effectively through Script Include, Sub flows, and Actions. These functionalities cater to the needs of citizen developers.
The essential components of these items are 'data pills', which enable straightforward field mapping. Furthermore, Out-Of-The-Box (OOB) Spokes have simplified intricate scripting concepts.
Step 4: Integrations play a significant role in onboarding business data to facilitate seamless operations. However, constructing, maintaining, and managing these integrations within the landscape is not a straightforward task. The methods are illustrated in the diagram and article below. This establishes the concept of simplifying your integrations.
<<< Integration Approaches >>>
I hope you enjoyed the articles. If you want to learn more ServiceNow tips, tricks, Solutions follow the hightligted Youtube Channel
Regards,
Suresh.
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