How to send all my pages?
IndexNow notifies participating search engines when a URL has recently been added, updated or deleted. It does not replace a sitemap listing your shop’s URLs.
Use an up-to-date sitemap to provide that inventory to search engines. You can find our sitemap module here.
If the entire site has actually just changed, for example during a migration, submitting all affected URLs can be relevant. Avoid repeatedly resubmitting unchanged URLs and respect both the module’s and the search engine’s submission limits.
An IndexNow notification or inclusion in a sitemap does not guarantee indexing.
Sources: IndexNow recommendations.