ᐅ How to Remove a Drawer Under the Sink Unit from IKEA?

I installed an 80cm (31.5 inch) sink cabinet and temporarily fitted a large roll-out drawer. It is properly inserted and operates smoothly. Now I want to remove it again to install the double sink. However, I cannot find any way to detach the drawer from the cabinet rails. The instruction manual does not even include any information about installing the drawer, let alone removing it.

Can anyone help?

Is it Udden or which sink cabinet?

There is a thread on Faktum that explains this very well...

It is a fact, base cabinet, I will read through the thread.

Thanks anyway for the information.