Users report that a button on a custom Lightning web component (LWC) is not
saving the data they enter. The button looks to be clicked, but the LWC simply sits
there, seemingly doing nothing.
What should the developer use to ensure error messages are properly displayed?
Given the following information regarding Universal Containers (UC):
* UC represents their customers as Accounts in Salesforce.
* All customers have a unique Customer__Number_c that is unique across all of UC's systems.
* UC also has a custom Invoice c object, with a Lookup to Account, to represent invoices that are sent out from their external system.
UC wants to integrate invoice data back into Salesforce so Sales Reps can see when a customer pays their bills on time.
What is the optimal way to implement this?
An Apex trigger and Apex class increment a counter, Edit __C, any time the Case is changed.
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A developer is tasked with ensuring that email addresses entered into the system for Contacts and for a custom object called survey Response c do not belong to a list of blocked domains.
The list of blocked domains is stored in a custom object for ease of maintenance by users. The survey Response c object is populated via a custom Visualforce page.
What is the optimal way to implement this?