Good question it is importantly because If no one knew then it would be chaos
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Answer: Federal court jurisdiction is limited to certain types of cases listed in the U.S. Constitution. For the most part, federal court jurisdictions only hear cases in which the United States is a party, cases involving violations of the Constitution or federal law, crimes on federal land, and bankruptcy cases.
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1 way is keep the page up. Don’t take the page down. If new inventory is en route, keep the product page up and alive. A 404 error will be an even worse experience for consumers coming from a search engine or, perhaps, a link on a social media site.
Moreover, a search engine bot might remove your page from the index if it’s down for an extended period. When new inventory is in your warehouse, there might not be many customers left to buy it.