Bin Content (Fixed/Default)

Hi,

I am a novice when it comes to inventory setup and I cannot seem to find a logical/business explanation to why the system does what it does!

I have NAV2013 RTC and I have set up following.

Location Card: Bin Mandatory and Default Bin Selection = Last-Used Bin.
The location has two bins: B1 & B2.

When I create a purchase order for both bins for the first time for an item, a bin content is created for each bin, where Fixed and Default are checked.
I remove the Fixed because I don't want the system to know the last bin when inventory is zero.

I now create a various sales orders and purchase orders to ensure that the Default on bin content works fine.

However, when I create a sales orders, that empty the inventory on both bins and I then create a new purchase order, the system again create a bin content where Fixed and Default are checked.

I don't understand why Fixed is checked. My customer finds it very time-consuming to manually uncheck the Fixed on the bin contents everytime inventory is zero.

Do you know of a work-around or if I have missed a setup?

Regards
Ann