Can not insert null into column

Hello. Recently I found one strange thing that I faced for the first time.
I made two selectors, one for branch and one for UOM. Below is code for them

As you can see they have a selectors tag. One Acumatica default and one is made by myself.

During the test I have found one problem. I had this error

After some time of investigation I found one small problem in ASPX
ASPX created by customization project by adding grid:

And problem was with one control that Customization Project haven’t create by adding field

And after that everything works fine. But I have a similar one screen that have also a selector for Country DAC field with selector

And there is code ASPX code from this screen

But in this case the selector works fine. So it might be a bug but I suggest to check what customization project created if you have problem with fields but in code they looks good.

If you're facing similar issues with selectors or need customizations in your Acumatica project, don't hesitate to reach out! Our team specializes in troubleshooting and enhancing Acumatica implementations. Whether it's resolving bugs, creating custom fields, or improving functionality, we can help tailor your solution to fit your specific needs. Leave a request today and let's get started on optimizing your Acumatica system!