Is there a quick way to update all products with default out of stock action to be sign up for notification?
You cannot update all products together but you use cs-cart's bulk edit option.
You can select multiple products and then click on right top setting icon dropdown and choose edit selected.
- Now when a window open up you can select which options you want to modify.
- After that you will click Apply values to all the selected products link.
- Make your change and click on Apply first.
- Then after applying and verifying click on Save.
Run in phpMyAdmin
UPDATE cscart_products SET out_of_stock_actions = 'S';