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A developer sees test failures in the sandbox but not in production. No code or metadata changes have been actively made to either environment since the sandbox was created.
Which consideration should be checked to resolve the issue?
If test failures are occurring in a sandbox but not in production and there have been no active code or metadata changes, it could be due to differences in the Salesforce release versions between the two environments. Sandboxes can be on preview instances which get upgraded to new releases before production instances. This can lead to differences in behavior and could affect test executions. Ensuring that both the sandbox and production are on the same release can resolve such issues. API version differences and parallel testing settings typically do not cause discrepancies if the code hasn't changed, and while using SeeAllData=true is generally not recommended due to its dependence on the organization's data, it's unlikely to be the cause if the issue is related to the environment rather than the data.
Sandbox Preview Instructions
Understand the Salesforce Release Process
An org has a requirement that addresses on Contacts and Accounts should be normalized to a company standard by Apex code any time that they are saved.
What is the optimal way to implement this?
Apex triggers on Contact and Account with a helper class is the best practice for code reuse and maintaining clean trigger logic. Reference: Apex Developer Guide - Triggers and Order of Execution
Universal Containers stores user preferences in a Hierarchy Custom Setting, User_Prefs_c, with a Checkbox field, Show_Help_c. Company-level defaults are stored at the organizational level, but may be overridden at the user level. If a user has not overridden preferences, then the defaults should be used.
How should the Show_Help_c preference be retrieved for the current user?
To retrieve the Show_Help__c preference for the current user from a hierarchy custom setting, the getInstance() method should be used. This method retrieves the custom setting data for the user or the organization default if no user-specific setting is found. Reference: Salesforce Help - GetInstance Method
Refer to the Aura component below:
A developer receives complaints that the component loads slowly.
Which change can the developer implement to make the component perform faster?
To improve the performance of an Aura component that is loading slowly, the developer can make the following change:
D . Change the default for showContactInfo to ''False': By setting the default value of showContactInfo to False, the component does not fetch or render the contact information by default, which can reduce the initial load time. The information can be fetched and displayed later based on user action or other triggers.
Changing the type of contactInfo to 'Map' (Option A) or moving the contents of <c:contactInfo> into the component (Option B) may not necessarily improve load times. Adding a change event handler for showContactInfo (Option C) adds more processing and can potentially slow down the component if not handled efficiently.
Lightning Components Performance Best Practices: Improve Performance
There are user complaints about slow render times of a custom data table within a Visualforce page that loads thousands of Account records at once.
What can a developer do to help alleviate such issues?
Implementing pagination using the standard Account List controller in Visualforce is a proven method to improve performance when displaying large sets of data. Pagination allows only a subset of records to be fetched and displayed at a time, thereby reducing the load time of the page. Reference: Visualforce Developer Guide - Implementing Pagination
