Two Issues With 2.3.4

[peter_brown2]

Hello,

This is my first time posting here so would like to thank anyone in advance for any advice given.

My Magento store has been upgraded to version 2.3.4. I was waiting for this update because of a shopping cart issue I was having that when researched I saw was a fix in 2.3.4.

After updating I now have a couple of issues. One still being the shopping cart.

1) When in the shopping cart I get two error messages. The first is when you first go to checkout and it says address can not be saved. Then if you proceed to pay it hangs and there’s an error message saying could not save order.

2) Not all the products are showing available to choose even though in stock. I sell mobile phone accessories. So for example I have a drop down box where you click Apple then another one to select the model. Some of the models are showing and some are not. In the Samsung drop down nothing at all shows in the second box. Before the update it was all working ok.

Any advice or direction to a paid professional would be most appreciated. I understand nothings free in life and I don’t expect any freebies.

I can’t see a way of uploading screen grabs at the moment as on mobile. But I will try and upload examples when in regular computer.

Kind Regards,

[DigitalStudioNW]

Are you using a custom theme?  If so, most theme developers have released updates for 2.3.4 and there are many things that 'break'.  Same goes for third-party checkout modules.  You also didn't mention your payment method(s) as there may be some issues there, as well.

As for the stock issues, are you using MSI?  May be a configuration issue there.  I would check the products and make sure they still show tax and shipping weight attributes in your attribute set(s).

[peter_brown2]

Thank you for the suggestions I will look at both of these today.

In case anyone else is having the same issue as my number one this post helped me temporarily solve it.

https://github.com/magento/magento2/issues/23908#issuecomment-518875486

https://github.com/magento/magento2/issues/23908#issuecomment-522068960

[vishalcom777]

@peter_brown2  thanks for the solution, its worked for me.

Adding the same Query here so others can fix quickly

SELECT entity_id, customer_id FROM quote WHERE customer_id != 0 AND customer_is_guest = 1;

Then  reset them to the proper status:

UPDATE quote SET customer_is_guest = 0 WHERE customer_id != 0 AND customer_is_guest = 1;