Salesforce Online Training

Category: LWC

  • How the Lightning Data Service Efficiency?

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    Deepa Nair
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    Question: How efficient is Lightning Data Service (LDS) in Salesforce when it comes to working with multiple records? Is it suitable for bulk loading or updating, or is it better to use Apex for handling large volumes of records? Answer: Lightning Data Service (LDS) in Salesforce is designed to simplify working with records on the…

  • How to Maintain Flow LWC Input Values with Dynamic Visibility?

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    Deepa Nair
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    When building a custom Lightning Web Component (LWC) for a Flow screen, a common challenge arises when you want to preserve input values between navigation (using “Use values from when the user last visited this screen”) but also refresh certain logic, such as dynamic field visibility, based on variables or selections from earlier screens. In…

  • Fixing ‘set on proxy’ Error in LWC

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    Deepa Nair
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    When working with Lightning Web Components (LWC), you may run into the following error while trying to update a field on a Contact record fetched via an Apex method This typically occurs when you fetch data using a @wire service with an Apex method marked as cacheable=true. In such cases, Salesforce provides the data as…

  • How can I get a valid Session ID in Lightning?

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    Deepa Nair
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    Question When working with the Apex Wrapper Salesforce Metadata API, developers often need a valid API-capable session ID to perform operations such as updating picklist values dynamically. In Salesforce Classic, it is possible to retrieve a valid session ID using UserInfo.getSessionId() and pass it into an asynchronous method for Metadata API callouts. However, in Salesforce…

  • How to Pass Parameters to a Lightning Component Quick Action?

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    Deepa Nair
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    Question I have a Lightning Component that is used as a Lightning Component Quick Action. This component needs to be added to different objects, such as Account and Contact, as a quick action. The challenge I am facing is determining which object the component was invoked from. While I can retrieve the record Id using:…

  • How to Retrieve Tabs, Apps, and Apex Classes in Salesforce?

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    Deepa Nair
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    Question I am using sf project retrieve to pull metadata from my Salesforce Dev Hub into my local project. My package.xml retrieves Apex triggers but does not fetch custom applications (Lightning apps), custom tabs, Apex classes, or custom fields. How can I modify package.xml to retrieve them? Answer In Salesforce, retrieving metadata using sf project…

  • Why is the IF Condition Not Working in My Email Template?

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    Deepa Nair
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    Question I added an IF condition to my email template, but it is not working as expected. Instead of evaluating the condition, the output appears as: The expected output should be: Additionally, when I try using this IF statement: I get the following error message: “This template doesn’t support SML merge fields. Use the merge…

  • How can I use Custom Labels in Field Service Mobile Flows?

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    Deepa Nair
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    Question I’ve been replacing hard-coded text in Field Service Mobile Flows with Custom Labels to support translations. Since Custom Labels cannot be applied directly to Display Text components, I followed a workaround that suggests creating a Formula Text Resource to reference the Custom Label, then using that formula in the Display Text component. However, when…

  • How to Get Parent Id in New Button Override?

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    Deepa Nair
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    Question I am using an Aura component to override the New and Edit actions for a custom object (Child_Object__c), which has a master-detail relationship with Parent_Object__c. When clicking Edit, force:hasRecordId correctly provides the record Id of the child object. However, when clicking New from the related list on the parent record’s detail page, there is…

  • Why is CurrentPageReference.state Always Empty in LWC on a Community Page?

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    Deepa Nair
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    Question I am trying to retrieve a URL parameter in an LWC embedded in a Salesforce Community page, but CurrentPageReference.state is always coming as {}. Even though I pass eventid in the URL like this: the console log shows: Why is the state object empty, and how can I correctly access the URL parameter? Answer…