Units of Measurement
Platform-managed UOMs and per-item conversions.
Units of Measurement#
Units of Measurement (UOMs) are how quantities are expressed — KG, NOS, MTR, LTR, etc. In Neriyam, UOMs are platform-managed: the list is maintained centrally and is shared across every organization. You do not create or edit the UOM catalogue yourself.
What you do control is how each item uses UOMs — specifically, per-item conversions between the stock UOM and the units you buy or sell in.
UOM categories#
UOMs are grouped into categories. Each category contains units with defined conversions between them:
| Category | Example units |
|---|---|
| Count | NOS (numbers), PC (pieces), BOX, DOZ (dozen), SET |
| Weight | KG, G, MT (metric ton), LB, OZ |
| Length | MTR, CM, MM, FT, INCH |
| Volume | LTR, ML, M3, GAL |
| Area | M2, SQFT, SQM |
| Time | HR, MIN, DAY |
Cross-category conversion (KG → MTR) is not built in — conversion between weight and length depends on the specific material and is captured as a per-item UOM conversion instead (see below).
Stock UOM — one per item#
Every item has a single Stock UOM. This is the cost basis: stock balances, moving-average cost, and valuation are all computed in stock UOM.
Once an item is approved, its stock UOM cannot be changed. Pick carefully up front. Good rules of thumb:
- For items sold by weight, use KG
- For items with definite individual units, use NOS or PC
- For cables, pipes, sheets measured by length, use MTR
- For fluids or compounds, use LTR or KG
Per-item UOM conversions#
An item can be bought, sold, or issued in UOMs different from the stock UOM — Neriyam handles the conversion for you using the conversion factors you define on the item.
Example: A steel bar that is:
- Stocked by KG (cost basis)
- Bought in MTR (supplier prices per metre —
1 MTR = 2.5 KG) - Sold in EA (customer buys whole bars —
1 EA = 150 KG)
On the item's UOM Conversions tab:
| UOM | Conversion (→ Stock UOM) | Purchase? | Sales? | Default Purchase | Default Sales |
|---|---|---|---|---|---|
| KG | 1.0 | ☑ | ☑ | ||
| MTR | 2.5 | ☑ | ☑ | ||
| EA | 150 | ☑ | ☑ |
The Purchase and Sales flags control which UOMs appear in the UOM picker on POs and SOs respectively. The Default flags pre-select one UOM.
Every stockable item should have at least one purchase UOM and one sales UOM flagged — even if it is just the stock UOM repeated. This makes the transaction forms cleaner.
How conversions are applied#
On a PO line:
- You enter quantity in the purchase UOM (say 10 MTR)
- You enter rate in the purchase UOM (say ₹200 per MTR)
- Line total is ₹2,000
On submit of a GRN that receives this PO line:
- Neriyam converts 10 MTR to 25 KG (using the factor of 2.5)
- Stock balance for the item in the destination warehouse goes up by 25 KG
- Balance value goes up by ₹2,000 — so stock cost per KG is ₹80
The same applies in reverse on a sales delivery: a customer buying 2 bars (EA) causes 300 KG to leave stock at the current average cost.
Where UOMs show up in the app#
- Item → UOM Conversions tab — where you set up per-item UOMs
- Item form → Stock UOM field — the base unit
- PO / SO line → UOM dropdown — shows only this item's Purchase (PO) or Sales (SO) UOMs
- GRN / SDN / other stock entry lines — use the line's UOM for quantity entry; Neriyam converts to stock UOM internally
No admin page for UOMs#
There is no Settings › UOMs page. The catalogue is fixed by Neriyam's platform team. If your business genuinely needs a new UOM (not one of the common hundred already seeded), contact support.
If you cannot find a UOM you need, use the closest standard UOM and capture the detail in notes or attachments. To request additions to the catalogue, contact support.
Permissions#
UOMs are read-only for all users — they are managed by the platform, not at the organization level.
Related#
- Items — where UOMs are configured per item
- Stock valuation — stock UOM is the cost basis
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