Readd/Reindex a page that was 410'd

[Wana-Ryd]

A script of ours had an error that caused some pages we didn't wish 410'd to be 410'd, we caught it in about 12 hours but for some pages it was too late.

My question is, will those pages be reindexed again and how will that affect their page ranking will they eventually be back where they were?  Would submitting a site map with them help, or what would be the best way to correct this error (submit the links to google indexer maybe?).

[Andrew-SEO]

It depends how many there are - if there are only a few then manually fetch them all in GSC and request a crawl one by one.

If there are many you could create a page with them all listed as hyperlinks and perform a fetch with using "Crawl this URL and its direct links"

They should be back in very soon. It's difficult to gauge the impact. If all internal linking and backlinks are still in place you there may be minimal damage if any.