Built in flags for feed failures

Built in flags for feed failures.

1. Customers should be notified immediately if there feed is failing. An email should be sent directly to the customer as soon as the feed fails. The email would include why the feed has failed and the email for their CSM and support team

2. We should also have a flag for feeds that are successfully uploaded but have not been updated. For instance, if we notice a feed hasn’t changed after 3 days, this should also be flagged to the customer, as stagnant feeds can also lead to issues with OOS products and placeholders

Often feed failures go unnoticed and customers see issues onsite (such as old prices) and then raise a support request. This feature would take a load of the Support team.