In this blog, we’ll explain why you can’t directly perform DML operations from JavaScript in Salesforce Lightning Web Components (LWC), and how to do it the right way using Apex or Lightning Data Service. Knowing this is important for keeping your data secure, respecting user permissions, and following Salesforce best practices. We’ll walk you through a simple, step-by-step guide so you can safely perform DML operations and make your Salesforce apps work efficiently.
Steps to Use CRUD in Lightning Web Components
- JavaScript (LWC) runs in the user’s browser (client-side).
- DML operations like insert, update, or delete must run on Salesforce servers, where the system checks permissions, sharing rules, and governor limits.
- If JavaScript could do DML directly, it would bypass security and could cause issues in Salesforce’s shared environment.
- Always do DML on the server — either using Apex @AuraEnabled methods or Lightning Data Service (LDS).
- Create a Secure Apex Controller (Server-Side DML)
- Use with sharing to respect sharing rules.
- Use AuraHandledException (or custom) to return friendly error messages to client.
- Consider @AuraEnabled(cacheable=true) only for read methods not for DML.
- Create the Lightning Web Component.
- Deploy Apex and LWC to your org.
- Add the component to a Lightning App or Record Page.
- Enter an account name and click Create.
- Confirm the Account record was created in Salesforce.
Alternative: Use Lightning Data Service (LDS) for Simple CRUD (No Apex)
- If your use case is simple CRUD with no special server logic, prefer LDS – it’s declarative and doesn’t require Apex.
- When to use LDS: Quick create/update/delete for standard objects.
- When to use Apex: Complex business logic, multiple DML operations in a transaction, conditional sharing logic, cross-object processing, or external API integration.
Conclusion
By following this guide, you’ll understand how to perform CRUD operations safely in Salesforce Lightning Web Components. Using Apex or Lightning Data Service ensures that your application maintains data integrity, security, and compliance with Salesforce best practices.
By following the above blog instructions, you will be able to learn “Securely Perform CRUD in Salesforce Lightning Web Components (LWC)“. If you still have queries or any related problems, don’t hesitate to contact us at salesforce@greytrix.com. More details about our integration product are available on our website and Salesforce AppExchange.
We hope you may find this blog resourceful and helpful. However, if you still have concerns and need more help, please contact us at salesforce@greytrix.com.
About Us
Greytrix – a globally recognized and one of the oldest Sage Development Partner and a Salesforce Product development partner offers a wide variety of integration products and services to the end users as well as to the Partners and Sage PSG across the globe. We offer Consultation, Configuration, Training and support services in out-of-the-box functionality as well as customizations to incorporate custom business rules and functionalities that require apex code incorporation into the Salesforce platform.
Greytrix has some unique solutions for Cloud CRM such as Salesforce Sage integration for Sage X3, Sage 100 and Sage 300 (Sage Accpac). We also offer best-in-class Cloud CRM Salesforce customization and development services along with services such as Salesforce Data Migration, Integrated App development, Custom App development and Technical Support business partners and end users. Salesforce Cloud CRM integration offered by Greytrix works with Lightning web components and supports standard opportunity workflow. Greytrix GUMU™ integration for Sage ERP – Salesforce is a 5-star rated app listed on Salesforce AppExchange.
The GUMU™ Cloud framework by Greytrix forms the backbone of cloud integrations that are managed in real-time for processing and execution of application programs at the click of a button.
For more information on our Salesforce products and services, contact us at salesforce@greytrix.com. We will be glad to assist you.
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