In Click Maint inventory, Parts On Hand and Parts Available represent two different quantities of the same part.
Parts On Hand
Definition:
The total physical quantity of a part currently in inventory, regardless of whether it is already allocated to work orders.
It’s the actual stock count in your storeroom or inventory location.
This number is manually adjusted or updated when parts are:
Added to inventory
Consumed on work orders
Adjusted by inventory updates
Example:
You physically have 10 filters in the stockroom → On Hand = 10
The import templates also describe this field as:
“How many are currently on-hand.”
Parts Available
Definition:
The quantity that is still available to use, after subtracting parts already reserved/assigned to work orders.
Formula conceptually:
Available = On Hand − Reserved for Work Orders
Example:
On Hand = 10 filters
3 filters already assigned to open work orders
➡ Available = 7
This helps technicians know what can still be used, not just what physically exists in inventory.
Why Click Maint Shows Both
Using both values prevents issues like:
Double-using the same part on multiple work orders
Thinking stock is available when it’s already reserved
✅ Quick summary
Field | Meaning | Example |
On Hand | Total physical quantity in inventory | 10 |
Available | Quantity not already reserved for work orders | 7 |