Lightning-record-edit-form Does Not Bring Latest Record Value

Lightning-Record-Edit-Form Not Updating with Latest Record Values: Troubleshooting and Solutions

This article addresses a common issue encountered when using the lightning-record-edit-form component in Salesforce Lightning Web Components (LWC): the form failing to reflect the most recent values of a record. This can be incredibly frustrating, leading to data inconsistencies and a poor user experience. We'll explore the root causes of this problem and provide effective solutions to ensure your forms always display the up-to-date data.

Why is my lightning-record-edit-form not showing the latest data? This usually stems from issues with data caching, improper data handling, or asynchronous operations. Let's break down the most common culprits:

1. Caching Issues

Salesforce and browsers both employ caching mechanisms to improve performance. However, this caching can prevent your lightning-record-edit-form from immediately reflecting changes made elsewhere in the application or externally.

Solution: Force a refresh of the record data. You can achieve this by:

Using the @wire adapter with a unique key: The @wire adapter's params can include a unique key that changes whenever the record is updated. This forces a re-query. A common approach is to use a timestamp or a counter that increments each time a relevant update occurs.

import { LightningElement, wire } from 'lwc';
import { getRecord } from 'lightning/uiRecordApi';
import { refreshApex } from '@salesforce/apex';

export default class MyComponent extends LightningElement {
    recordId = '006xxxxxxxxxxxxxxxxx'; // Replace with your record ID
    updateCounter = 0; //Added update counter
    record;
    error;

    @wire(getRecord, { recordId: '$recordId', fields: ['Account.Name', 'Account.Industry'] })
    wiredRecord({data, error}){
        this.error = error;
        if (data) {
            this.record = data;
        }
    }

    handleUpdate(){
        this.updateCounter++; //Increment update counter on data change
    }


}

Using refreshApex: After an external update (e.g., a successful save from another component), call refreshApex on the wired function to explicitly refresh the data.

2. Asynchronous Operations and Timing Issues

Since data retrieval and updates are asynchronous operations, there's a possibility that the form renders before the data has fully loaded. This timing discrepancy can result in stale data being displayed.

Solution: Utilize the isLoading property of the @wire adapter and conditional rendering to prevent displaying the form until the data is available. Only render the form after the data property is populated and error is null.
```
// ... (previous code) ...

renderedCallback(){
    if (this.error){
        console.error("Error during data fetch: ", this.error);
    }
}
```

3. Incorrect Data Handling within the Component

Issues in your component's JavaScript logic might prevent the updated values from being properly reflected in the form. Carefully examine your data handling methods.

Solution: Review your code meticulously to ensure that any changes to the record are correctly propagated to the lightning-record-edit-form. Double-check for typos, incorrect variable assignments, and unexpected behavior in event handlers.

4. Data not Properly Refreshed after Save

If your updates are happening outside the lightning-record-edit-form (for example, via Apex method), ensure you are appropriately refreshing the record after the save operation completes.

Solution: Use refreshApex after a successful Apex call that modifies the record.

5. Incorrect Field API Names

Double check that the API names used in your fields parameter of the getRecord method are correct. Even a slight typo can prevent the form from properly reflecting the data.

Solution: Verify API names using the Salesforce Developer Console or the Schema Builder.

By addressing these common causes and implementing the suggested solutions, you can ensure that your lightning-record-edit-form consistently displays the latest record values, leading to a more robust and user-friendly application. Remember to always thoroughly test your changes after implementing these solutions.