After saving the delivery method, open the remaining amount, missing quantity.

Hi @slifei,

This issue is likely happening because the system does not recognize the quantity variable [qty]. To fix this, please follow these steps:

1. Navigate to WooCommerce > Settings > Shipping > Shipping methods.
2. Click on “Flat Rate”.
3. In the “Cost” field, enter 15.00 * [qty].
4. In the “Shipping class cost” field, you will need to enter a specific formula. For example, if you want to charge $15 per item, you would input: [qty]*15. This tells the system to multiply the quantity of items by $15.
5. Click “Save changes”.

If you are still encountering issues after trying these steps, please get back to us, and we’ll be happy to assist you further.

In the “Cost” field, enter 15.00 * [qty]. After saving, open it again and only 15.00 remains
In the “Transportation Category Cost” field, enter: [qty]*15. After saving, opening it again will show a blank page with nothing left.

Hello @slifei,

In the “Cost” field, enter 15.00 * [qty]. After saving, open it again and only 15.00 remains

This is due to an already known bug: #42892.

We currently don’t have an estimate for when a fix will be released. I see there’s a workaround available in this comment, I suggest you try it. :?)

If that didn’t help, consider reverting to version 8.3.1 until a fix is released. Plugins like WP-Rollback can make this process easier. We’re sorry for any inconvenience this bug may have caused.

Let us know if you have any other questions!

Okay, thank you very much!