Solve "Discovered - currently not indexed" in Google Search Console

Job ID: 37403187

Budget: $30 – $250 AUD

We built the online store (with Woocommerce Platform based), with over 640 products. We already updated sitemap via YOAST SEO and submited to Google Search Console for quite a while

However, seems only 40 products pages were indexed by Google, the rest of 640 products pages were shown as "Discovered - currently not indexed"., We tried submit for a few times but Google treated those pages were still as "Pending".

Need someone who is professional in the Google Search and Woocommerce field to provide me the solution on this issue.
Related categories: SEO WordPress WooCommerce Google Search