Statistically,

As you just took over, you should first ask your former warehouse keeper or your supervisor for an up-to-date inventory list and the date when the inventory was sorted out.

in the shortest possible time, count the actual inventory data (including the quantity of the part that belongs to the warehouse but is not in the warehouse) of the goods in the warehouse one by one, and suggest that the part that belongs to the warehouse but is not in the warehouse should be checked with the corresponding personnel on the spot according to the list of goods in the warehouse before you take over (if the other party can promise to return the original quantity, it will not be counted)

Finally, summarize it and check with the warehouse list.

As for daily management,

I suggest making a table of "Time, Secondment Unit, Secondment Reason, Item Category, Quantity, Return Time, Responsible Person, Date and Return Record".

in the future, it will be clearer to see this table in warehouse management.

In terms of placement

You can do more shelf tools to improve storage space.

put items with very high frequency of use together, and those with low frequency of use together.