---
title: Line items and parameters
description: How one enquiry becomes instruments, and how each value is marked stated, assumed or missing.
sidebar:
  label: Line items
  order: 4
---

Splits one enquiry into line items — one per distinct **instrument
specification**, with tag numbers and quantity — then records every process
parameter relevant to that category.

## Grouping

Several tags sharing one specification become **one line** carrying all of
them, because that is how the quotation is written (R20). Six LT-101…106 on
the same range and fluid are one line with quantity six, not six quotations.

Each line is then enriched with its **own** fluid properties, so instruments
on different fluids never share one lookup.

Each line gets a category: flowmeter, level instrument, level switch, or
something Flowtech does not make. The last produces no quotation line, with a
reason.

## Origin of every value

| Origin | Meaning | Downstream |
| --- | --- | --- |
| **Stated** | The customer wrote it. Evidence (the wording) is shown | May exclude a product if it breaches a known rating |
| **Assumed** | We derived or defaulted it | Never satisfies a required parameter (R16). A breach **warns**, it does not exclude |
| **Missing** | Required for this category and not stated | The list the sales person takes back to the customer |

Ambient pressure and 40 °C are assumed only when the enquiry states nothing,
and **never** for steam or a stated gas (R17). A length is never kept as a
pressure or temperature (R18). A size written in the source that no line
captured is flagged in the customer's own notation (R19).

A failed reading is marked as such, not presented as an enquiry that stated
nothing (R21).

## What the sales person does

Review each line, chase missing required parameters, and correct by
re-processing after the customer answers — the reply lands on the same
conversation. Option choices on a quotation whose line identity then changes
are withheld (R36).

Related: [Processing a case](/business/workflows/processing-a-case) ·
[Product suggestion](/business/features/product-suggestion).