You can enable an existing inventory location to use zones and bins and to operate as a warehouse location.
The batch job to enable a location for warehouse operation creates initial warehouse entries for the warehouse adjustment bin for all items that have inventory in the location. These initial entries will be balanced when warehouse physical inventory entries are entered after the batch job is run.
You can create zones and bins either before or after the conversion. The only bin that you must create before the conversion is the one that is to be used as the future adjustment bin.
As a precondition for running the batch job, you must clear all
negative inventory and any open warehouse documents for the
location. You can use the 
Check
on Negative Inventory report to identify the items with
the negative inventory and open warehouse documents for the
location.
Create a new bin that will be the warehouse adjustment bin for the location.
Run the Create
Warehouse Location batch job.
Using the open item ledger entries for the specified location, the program creates warehouse journal lines that sum up every combination of Item No., Variant Code, Unit of Measure Code, and, if necessary, Lot No. and Serial No. in the item ledger entries. The program then posts these warehouse journal lines. This posting creates warehouse entries that place the inventory in the warehouse adjustment bin. The program also sets the Adjustment Bin Code on the Location Card.
To see which items were added to the adjustment bin during the
batch job, you can run the Whse.
Adjustment Bin report.
Once the batch job has completed, you must perform and post a warehouse physical inventory.
If you have not yet created zones and bins for the location, you can do so after the batch job has finished.
It is recommended that you run this batch job at a time when it will not impact the daily work in the system. This job processes each entry in the Item Ledger Entry table, and if there are a large number of item ledger entries, the job can last several hours.
For those locations that did not use warehouse management documents before the conversion, you must re-open and release any source documents that were partially received or partially shipped before the conversion.