Collection
Problem\Collection
Magento\Newsletter\Model\ResourceModel\Problem\Collection
What it does
This collection class retrieves and manages newsletter problem records, which track issues with newsletter deliveries to subscribers.
Developers use this when displaying failed newsletter sends, allowing them to join subscriber and queue information to see which emails bounced or failed, along with customer details for troubleshooting delivery problems.
Public Methods
- addSubscriberInfo()
- addQueueInfo()
- load()