A clients website has a lot of joboffers (thousends), which when are filled go offline. I made 404 page specially for these joboffers with recommendations to other offers. My client says he gets the Google Search Console warning: Increase on 404 pages on clients website. He says he wants to redirect the pages to joboffers overview page to solve this. But i guess that is unexpacted behaviour and will result in soft-404's?
In my opinion the custom joboffer 404 provides the visitor the best solution but results in a Search Console warning.
And if i would redirect to the overview should it be 302? Urls can be used again in the future. I thought i would maybe add an extra parameter to the overview url to enable a message to note the visitor of the no longer available offer to clarify the unexpected behaviour.
What is best practice here?