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Soo.. I've created CRON script, that each 1 minute retrieves an actual stock systems data, converts it for Wordpress/Woocommerce database table and updates stock.

On database side everything looks right and works (see 1st screenshot), but in WP Admin Panel only parent/main variable product inventory data shows as updated - it SUMS all variation STOCK quantities (see 2nd screenshot). However he STOCK quantity data in Variations section for different sizes doesn't seem to be updated (see 3rd screenshot).

Soo I was wondering.. is there some kind of Caching that WooCommerce is using? And if so.. how can I clear it? Because so far I've cleared all the cache there is, but Variation stock still stays 0.

Screenshots & Descriptions

Database after update - Stock CRON script updates Variation stock (double checked, works for all Variations and main parent Variable product Inventory STOCK - it sums all Variations STOCKS) Database Screenshot

Product variation after update - Stock CRON DID update this value, but it still shows 0. Variation Product Screenshot

Variable/Parent product after update - Stock CRON did update the stock - SUMS up all variations STOCK quantitys and updates it here. Variable/Parent Product Screenshot

I've double checked everything. CRON script is fine - as you can see from screenshots it does update data in database. The issue here is only that it doesn't show it in front for Variations of products.

A help would be much apreciated! :) Thanks in advance.

  • Try updating the variation stock in the backend, and see what it stores in the DB. I think there is a meta value like _variable_stock – Pim Oct 15 '18 at 7:51
  • @Pim Unfortunately there is no such meta_key in postmeta table. – richardev Oct 15 '18 at 10:57
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After some hours of investigation I deactivated W3 Total Cache plugin. Still no changes. And then I noticed WP Redis plugin.. soo I searched for Redis Object Caching on serverside and found it. When I flushed the cache, the stock showed updated stock quantity.

Soo.. always double-check your caching. :D

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