Any simple way to clear a bin of all items?

Simplest I can think of is a saved search to find all items in the bin and the current bin on hand quantities, then turn that around into an inventory adjustment import. A few steps, but isn't too time consuming and at least isn't manually adjusting each one by hand.

@Alan Fitch there will be some bin best practices covered in this webinar later this month https://info.rfsmart.com/netsuite-bins-july-2021

Sell them 😄

You could also do an inventory count that stipulates just that bin, and approve the counts of "0" for all items in that bin. That will create an inventory adjustment for you for just that bin.

I ended up writing a suitelet that generates that inventory count.