In Stock but not always visible on product page

[ellenb4t]

Hi,

We recently turned on stock management (not the advanced one), but something strange is happening:

Some products show the 'in stock' button on the product page, or the 'Binnen 3 - 5 dagen geleverd' (when it's out of stock), but some don't.

I'll show you:

* Frontpage: https://www.bike4travel.nl/ > here you can see the stock buttons at the bottom of the page.
* Product 'out of stock' > https://www.bike4travel.nl/binnenbanden/5210-tubolito-mtb-binnenband-29.html > it should show the button 'Binnen 3 - 5 werkdagen geleverd' next to the product. But nothing.

* Product 'in stock' > https://www.bike4travel.nl/onderhoud/5203-hansaline-kettingwax.html > no 'In stock' button here.

* The only times the buttons DO appear, is when in the admin I manually fill out the 'Availability settings' for each product, like this one: https://www.bike4travel.nl/fietsreparatiecursusactiviteit/5211-14-dec-tsjechie-dichtbij-en-toch-anders.html

But, I am not going to do that for every single product in the shop. I only fill these texts if I want the text on the stock button to be different from the default button text, right?

My question: how can I make the 'stock button' that is visible in the category layout also be visible on the product page? By using the default stock tekst that I set in 'Localization > Translations'?

 

PLUS: when I add an out of stock item to the shopping cart and I finish my order, it says 'In stock' ('Op voorraad' in Dutch), while it is not in stock! 

 

Please let me know how to fix this.

Cheers, Ellen