Odoo 19.0 Community · Persistent

mrp.bom.line: fields, relations and API

The mrp.bom.line model ("Bill of Material Line") is a persistent model declared by the Manufacturing module, then extended by 1 other module. It exposes 23 fields, 17 of them declared directly on the model; 1 field from other models points to it. Below you will find every field with its technical name, type, label and relations, followed by an Odoo 19 JSON-2 API call.

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Model identity

Technical name: mrp.bom.line
Label: Bill of Material Line
Type: Persistent (models.Model)
SQL table: mrp_bom_line
Origin module: Manufacturing (mrp)
Extended by: purchase_mrp
Default order (_order): sequence, id
Display field (_rec_name): product_id

Model fields

17 own fields, 0 inherited from mixins and 6 automatic ORM fields. Click a name to get a direct link to that field.

Hide inherited fields

23 of 23 fields shown

Technical name	Label	Type	Details
allowed_operation_ids	Allowed Operation	`one2many` → mrp.routing.workcenter	related: `bom_id.operation_ids`
attachments_count	Attachments Count	`integer`	computed
bom_id	Parent BoM	`many2one` → mrp.bom	required
bom_product_template_attribute_value_ids	Apply on Variants BOM Product Variants needed to apply this line.	`many2many` → product.template.attribute.value
child_bom_id	Sub BoM	`many2one` → mrp.bom	computed
child_line_ids	BOM lines of the referred bom	`one2many` → mrp.bom.line	computed
company_id	Company	`many2one` → res.company	read-only related: `bom_id.company_id`
cost_share	Cost Share (%) The percentage of the component repartition cost when purchasing a kit.The total of all components' cost have to be equal to 100.	`float`	added by Purchase and MRP Management (`purchase_mrp`)
operation_id	Consumed in Operation The operation where the components are consumed, or the finished products created.	`many2one` → mrp.routing.workcenter
parent_product_tmpl_id	Parent Product Template	`many2one` → product.template	related: `bom_id.product_tmpl_id`
possible_bom_product_template_attribute_value_ids	Possible Bom Product Template Attribute Value	`many2many` → product.template.attribute.value	related: `bom_id.possible_product_template_attribute_value_ids`
product_id	Component	`many2one` → product.product	required
product_qty	Quantity	`float`	required
product_tmpl_id	Product Template	`many2one` → product.template	related: `product_id.product_tmpl_id`
product_uom_id	Unit	`many2one` → uom.uom	required
sequence	Sequence Gives the sequence order when displaying.	`integer`
tracking	Tracking	`selection`	related: `product_id.tracking`
create_date	Created on	`datetime`	read-onlyautomatic
create_uid	Created by	`many2one` → res.users	read-onlyautomatic
display_name	Display Name	`char`	read-onlycomputedautomatic
id	ID	`integer`	read-onlyautomatic
write_date	Last Updated on	`datetime`	read-onlyautomatic
write_uid	Last Updated by	`many2one` → res.users	read-onlyautomatic

Relations

Models linked from this model

mrp.bom: bom_id, child_bom_id
mrp.bom.line: child_line_ids
mrp.routing.workcenter: allowed_operation_ids, operation_id
product.product: product_id
product.template: parent_product_tmpl_id, product_tmpl_id
product.template.attribute.value: bom_product_template_attribute_value_ids, possible_bom_product_template_attribute_value_ids
res.company: company_id
uom.uom: product_uom_id

Fields of other models pointing here

stock.move: bom_line_id

Reading this model through the API

Odoo 19 JSON-2 API call reading the first five records with real fields of the model. Replace the instance, database and API key with your own.

curl

curl -X POST "https://your-instance.odoo.com/json/2/mrp.bom.line/search_read" \
  -H "Authorization: bearer $ODOO_API_KEY" \
  -H "X-Odoo-Database: your-db" \
  -H "Content-Type: application/json" \
  -d '{"domain":[],"fields":["product_id","bom_id","product_qty","product_uom_id","company_id"],"limit":5}'

Python (requests)

import requests

BASE_URL = "https://your-instance.odoo.com/json/2"
headers = {"Authorization": f"bearer {API_KEY}", "X-Odoo-Database": "your-db"}

res = requests.post(
    f"{BASE_URL}/mrp.bom.line/search_read",
    headers=headers,
    json={"domain": [], "fields": ["product_id","bom_id","product_qty","product_uom_id","company_id"], "limit": 5},
)
res.raise_for_status()
print(res.json())

External API access requires Odoo's Custom plan.
XML-RPC and JSON-RPC will be removed in Odoo 22 (fall 2028): use JSON-2.
The access rights and record rules of the key's user apply.

Cite this tool

Writing a tutorial, internal documentation or a forum answer? Copy this link to send your readers to the up-to-date reference.

<a href="https://aidoo.ai/en/outils/explorateur-modeles-odoo/mrp-bom-line">mrp.bom.line (Odoo 19.0)</a>

Sources

Data verified on September 23, 2026 · Odoo 19.0 Community

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