What is the recommended way to bulk update previously published Instant Articles with the Instant Articles for WP plugin? Here are the instructions that FB provides for updating articles with the RSS feed:
At times you may need to update the content of a previously published article, as in the case of a developing news story. To automatically specify an article to update and republish, its HTML must include the op-published and op-modified <time> elements, and the updated article must be redistributed via your RSS feed.
Facebook checks your RSS feed multiple times each hour to determine if any of your Instant Articles content has been updated. An Instant Article will be updated and republished if the op-modified date for an article in your RSS feed is more recent than the op-modified date of the existing article in your library.
There are a few limitations to consider when updating articles that have been previously published:
- Facebook pulls a maximum of 100 items that are new or modified since the last pull. If you are adding or changing more than 100 items every ten minutes or so, the Instant Articles system will only update the first 100 items, sorted by modified time, with the most recent appearing first.
- If an update to an existing Instant Article is more than 24 hours old based on its op-modified time, it will be ignored by the pull. For example, if your feed is pulled at 12:00pm on October 8th and an article in your feed with the op-modified time set to 11:59am on October 7th, it will be ignored.
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