search_doffin

Search Norwegian public procurement notices on Doffin.

Signature: search_doffin(query: string, optional, default ''; types: list of string (comma-separated), optional, default None; statuses: list of string (comma-separated), optional, default None; contract_nature: list of string (comma-separated), optional, default None; cpv_codes: list of string (comma-separated), optional, default None; locations: list of string (comma-separated), optional, default None; buyer: list of string (comma-separated), optional, default None; winner: list of string (comma-separated), optional, default None; date_from: string, optional, default None; date_to: string, optional, default None; sort_by: string, optional, default 'RELEVANCE'; page: integer, optional, default 1; hits_per_page: integer, optional, default 10; include_placeholders: yes/no, optional, default False; limit: integer, items, optional, default 25; offset: integer, items, optional, default 0)

Direct GET

For navigating agents: open the HTML page with parameters in the URL. The result is fetched and displayed without screenshots or form filling.

Open this validated HTML GET URL

https://allemannsdata.com/wiki/kilder/doffin/search_doffin/?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0

Replace {query}, {types}, {statuses}, {contract_nature}, {cpv_codes}, {locations}, {buyer}, {winner}, {date_from}, {date_to}, {sort_by}, {page}, {hits_per_page}, {include_placeholders} with values. Remove unused optional parameters from the URL.

For software and dashboards: Read the operation descriptor. The JSON GET template is https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0. Open this exact request as JSON.

Parameter	Requirement	JSON type	Description
`query`	optional	string	Free-text search (Norwegian or English), e.g. "IT-drift", "snørydding", "rammeavtale konsulent". Start here.
`types`	optional	union	Filter by notice type. Parent types: PLANNING, COMPETITION, RESULT. Specific types: ANNOUNCEMENT_OF_COMPETITION, DYNAMIC_PURCHASING_SCHEME, QUALIFICATION_SCHEME, ANNOUNCEMENT_OF_INTENT, PRE_ANNOUNCEMENT, ADVISORY_NOTICE, NOTICE_ON_BUYER_PROFILE, ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT, CHANGE_OF_CONCLUSION_OF_CONTRACT, CANCELLED_OR_MISSING_CONCLUSION_OF_CONTRACT. Use ["COMPETITION"] + statuses=["ACTIVE"] for open tenders.
`statuses`	optional	union	ACTIVE (open for bids), EXPIRED, AWARDED, CANCELLED.
`contract_nature`	optional	union	WORKS, SERVICES and/or SUPPLIES.
`cpv_codes`	optional	union	8-digit CPV codes, e.g. ["45000000"]. Matches the code and its children. Find codes with search_cpv_codes(). Best combined with a free-text query.
`locations`	optional	union	NUTS-style location ids, e.g. ["NO060"] (Trøndelag), or "anyw" for non-location-bound. See list_location_codes().
`buyer`	optional	union	Buyer organization full name(s) exactly as written on notices, e.g. ["Trondheim kommune"]. Resolved to Doffin's internal buyer id via a free-text lookup; names that match no buyer are reported in "note" and, if none match, no results are returned (rather than an unfiltered search). Pass the 32-hex buyer id from a result's buyer field directly to skip the lookup.
`winner`	optional	union	Doffin's internal supplier id (32-hex). Winner names cannot be used - they are not present in search results to resolve against.
`date_from`	optional	union	Publication date lower bound, "YYYY-MM-DD".
`date_to`	optional	union	Publication date upper bound, "YYYY-MM-DD".
`sort_by`	optional	string	RELEVANCE (default), PUBLICATION_DATE_DESC, PUBLICATION_DATE_ASC, DEADLINE, ESTIMATED_VALUE_ASC, ESTIMATED_VALUE_DESC.
`page`	optional	integer	1-based page number.
`hits_per_page`	optional	integer	1-50 (default 10).
`include_placeholders`	optional	boolean	By default, hits whose buyer fields look like unfilled eForm template values (org id 123456789, placeholder buyer names) are dropped from the results as junk. Set True to keep them, each flagged with "possible_placeholder": true.
`limit`	optional	integer	Gateway page size; default 25, maximum 100.
`offset`	optional	integer	Number of list items to skip; default 0.

Generated JavaScript, Python and response structure

Use JSON when the user requests code, machine-readable data, value extraction or further computation. Use the HTML GET page to identify the correct source and verify parameters.

Example for generated JavaScript and Python

https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0

Replace URL placeholders and remove unused optional parameters.

JavaScript in a dashboard

const url = "https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0";
const response = await fetch(url);
if (!response.ok) {
  const failure = await response.json();
  throw new Error(`${failure.error.code}: ${failure.error.message} ${failure.suggestion}`);
}
const result = await response.json();
const data = result.data;

Python without additional packages

import json
from urllib.request import urlopen

url = "https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0"
with urlopen(url) as response:
    result = json.load(response)
data = result["data"]

Response structure

{
  "source": "doffin",
  "operation": "search_doffin",
  "parameters": {},
  "data": {},
  "entities": [],
  "_meta": {"retrieved_at": "...", "sources": [], "cache": {}},
  "_links": {"self": "...", "source": "...", "wiki": "...", "feedback": "..."}
}

Form for manual use

The form is a fallback for people and browser agents that cannot open the GET URL directly.

query Type: string. Free-text search (Norwegian or English), e.g. "IT-drift", "snørydding", "rammeavtale konsulent". Start here.

types Type: list of string (comma-separated). Filter by notice type. Parent types: PLANNING, COMPETITION, RESULT. Specific types: ANNOUNCEMENT_OF_COMPETITION, DYNAMIC_PURCHASING_SCHEME, QUALIFICATION_SCHEME, ANNOUNCEMENT_OF_INTENT, PRE_ANNOUNCEMENT, ADVISORY_NOTICE, NOTICE_ON_BUYER_PROFILE, ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT, CHANGE_OF_CONCLUSION_OF_CONTRACT, CANCELLED_OR_MISSING_CONCLUSION_OF_CONTRACT. Use ["COMPETITION"] + statuses=["ACTIVE"] for open tenders.

statuses Type: list of string (comma-separated). ACTIVE (open for bids), EXPIRED, AWARDED, CANCELLED.

contract_nature Type: list of string (comma-separated). WORKS, SERVICES and/or SUPPLIES.

cpv_codes Type: list of string (comma-separated). 8-digit CPV codes, e.g. ["45000000"]. Matches the code and its children. Find codes with search_cpv_codes(). Best combined with a free-text query.

locations Type: list of string (comma-separated). NUTS-style location ids, e.g. ["NO060"] (Trøndelag), or "anyw" for non-location-bound. See list_location_codes().

buyer Type: list of string (comma-separated). Buyer organization full name(s) exactly as written on notices, e.g. ["Trondheim kommune"]. Resolved to Doffin's internal buyer id via a free-text lookup; names that match no buyer are reported in "note" and, if none match, no results are returned (rather than an unfiltered search). Pass the 32-hex buyer id from a result's buyer field directly to skip the lookup.

winner Type: list of string (comma-separated). Doffin's internal supplier id (32-hex). Winner names cannot be used - they are not present in search results to resolve against.

date_from Type: string. Publication date lower bound, "YYYY-MM-DD".

date_to Type: string. Publication date upper bound, "YYYY-MM-DD".

sort_by Type: string. RELEVANCE (default), PUBLICATION_DATE_DESC, PUBLICATION_DATE_ASC, DEADLINE, ESTIMATED_VALUE_ASC, ESTIMATED_VALUE_DESC.

page Type: integer. 1-based page number.

hits_per_page Type: integer. 1-50 (default 10).

include_placeholders Type: yes/no. By default, hits whose buyer fields look like unfilled eForm template values (org id 123456789, placeholder buyer names) are dropped from the results as junk. Set True to keep them, each flagged with "possible_placeholder": true.

Result

Source: Doffin and TED. Retrieved 2026-09-11T19:22:06Z in 0.130 seconds.

total_count:

hits:

4 results

id:
2026-104807
buyer:
1 results
1. id:
  417d81277743d17a8f644ddecf3ea0f3
  organization_id:
  974446871
  name:
  Nasjonal kommunikasjonsmyndighet (Nkom)
heading:
Procurement of the development of an LR(A)IC model for delivery to the Norwegian Communications Authority
description:
The Norwegian Communications Authority intends to contract with one tenderer for the purpose of assistance in developing a cost model, or update existing model, based on an LR(A)IC methodology. As part of the assignment, the tender shall independently assess the strengths and weaknesses of various conceptual choices and assist Nkom in evaluating and determining the final conceptual choices for the chosen cost model. The selected tenderer must assist Nkom in developing a cost model that complies with the legal framework, including the relevant EC recommendation(s) and the European Electronic Communications Code (EECC). Commission Recommendation of 6 February 2024 on the regulatory promotion of Gigabit Connectivity, provides guidelines for the conceptual choices to be made.
location_id:
1 results
1. anyw
estimatedValue:
currencyCode:
NOK
amount:
8000000.0
type:
ANNOUNCEMENT_OF_COMPETITION
allTypes:
2 results
1. COMPETITION
2. ANNOUNCEMENT_OF_COMPETITION
status:
EXPIRED
issueDate:
2026-03-09T18:00:39Z
deadline:
2026-04-13T10:00:00Z
sentToTed:
yes
publicationDate:
2026-03-11
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.
id:
2025-107675
buyer:
1 results
1. id:
  417d81277743d17a8f644ddecf3ea0f3
  organization_id:
  974446871
  name:
  Nasjonal kommunikasjonsmyndighet (Nkom)
heading:
Market survey LRIC
description:
The Norwegian Communications Authority intends to contract with one tenderer for the purpose of assistance in developing a cost model, or update an existing model, based on an LR(A)IC methodology. The cost model will comply with the legal framework, including the relevant EC recommendation(s) and the European Electronic Communications Code (EECC). Commission Recommendation of 6 February 2024 on the regulatory promotion of Gigabit Connectivity, provides guidelines for the conceptual choices to be made. Technologies within scope of this assignment are FTTH technologies. This will at least include both P2P (‘point-to-point’) and PON (‘passive optical network’). The Cost model must have the capability to calculate costs for different types of operators with different scale and scope. The model will provide for cost modelling with Point of Handover at different network levels. It will also be able to provide for cost modelling of physical access (“fibre LLUB”), VULA, bitstream as well as access to pipes or subpipes. The model should also be capable of calculating separate costs for different types of geographic areas within an operator’s coverage.
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ADVISORY_NOTICE
allTypes:
2 results
1. ADVISORY_NOTICE
2. PLANNING
status:
not reported by source
issueDate:
2025-05-15T07:57:15Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2025-05-16
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.
id:
2025-116324
buyer:
1 results
1. id:
  9dcb62e612673c951b5e2a776d20264a
  organization_id:
  972417882
  name:
  Klima- og miljødepartementet
heading:
Nordic Roadmap for the introduction of sustainable zero-carbon fuels in shipping Phase 2: Implementation and realization 2025-2027
description:
Through the Nordic Council of Ministers, the Nordic countries are working together to establish green corridors for emission-free shipping between ports in the Nordic Region. On the basis of the work undertaken in the «Nordic Roadmap for the introduction of sustainable zero-carbon fuels in shipping» and the «Pilot project on green shipping corridors in the Nordics», this procurement aims to further develop green shipping corridors, supporting the transition to sustainable and emission-free maritime routes. The focus area for the programme is to stimulate decarbonization of shipping in the Nordic region, and to ensure that the green maritime industry in the Nordic countries will increase their competitiveness in this transition. The scope of this procurement, referred to as Phase II, centers on implementation and realization efforts. The two year programme (2025-2027) contains the following four project building blocks: 1. Moving Green Shipping Corridors into realization 2. Ensure safe port- and bunkering operations for sustainable zero carbon fuels 3. Continue and Strengthen the Nordic Collaboration Platform 4. Develop a Nordic green transition barometer for shipping The programme aims at involving stakeholders from the full Nordic region, maritime connectivity with neighbouring regions, and will take into account the special Nordic circumstances such as areas with ice-covered waters during winter. The value of the procurement is estimated to DKK 17 500 000 excl. VAT for the full programme period. For further information on the scope and content of the procurement, we refer to appendix 1.
location_id:
1 results
1. anyw
estimatedValue:
currencyCode:
NOK
amount:
17500000.0
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2025-11-06T13:46:29Z
deadline:
2027-12-31T00:00:00Z
sentToTed:
yes
publicationDate:
2025-11-10
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.
id:
2025-110359
buyer:
1 results
1. id:
  9dcb62e612673c951b5e2a776d20264a
  organization_id:
  972417882
  name:
  Klima- og miljødepartementet
heading:
Nordic Roadmap for the introduction of sustainable zero-carbon fuels in shipping Phase 2: Implementation and realization 2025-2027
description:
Through the Nordic Council of Ministers, the Nordic countries are working together to establish green corridors for emission-free shipping between ports in the Nordic Region. On the basis of the work undertaken in the «Nordic Roadmap for the introduction of sustainable zero-carbon fuels in shipping» and the «Pilot project on green shipping corridors in the Nordics», this procurement aims to further develop green shipping corridors, supporting the transition to sustainable and emission-free maritime routes. The focus area for the programme is to stimulate decarbonization of shipping in the Nordic region, and to ensure that the green maritime industry in the Nordic countries will increase their competitiveness in this transition. The scope of this procurement, referred to as Phase II, centers on implementation and realization efforts. The two year programme (2025-2027) contains the following four project building blocks: 1. Moving Green Shipping Corridors into realization 2. Ensure safe port- and bunkering operations for sustainable zero carbon fuels 3. Continue and Strengthen the Nordic Collaboration Platform 4. Develop a Nordic green transition barometer for shipping The programme aims at involving stakeholders from the full Nordic region, maritime connectivity with neighbouring regions, and will take into account the special Nordic circumstances such as areas with ice-covered waters during winter. The value of the procurement is estimated to DKK 17 500 000 excl. VAT for the full programme period. For further information on the scope and content of the procurement, we refer to appendix 1.
location_id:
1 results
1. anyw
estimatedValue:
currencyCode:
NOK
amount:
17500000.0
type:
ANNOUNCEMENT_OF_COMPETITION
allTypes:
2 results
1. COMPETITION
2. ANNOUNCEMENT_OF_COMPETITION
status:
AWARDED
issueDate:
2025-06-30T08:41:19Z
deadline:
2025-08-20T10:00:00Z
sentToTed:
yes
publicationDate:
2025-07-01
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.

limit:

offset:

returned:

has_more_results:

truncated:

Show all fields in HTML

total_count:

hits:

4 results

id:
2026-104807
buyer:
1 results
1. id:
  417d81277743d17a8f644ddecf3ea0f3
  organization_id:
  974446871
  name:
  Nasjonal kommunikasjonsmyndighet (Nkom)
heading:
Procurement of the development of an LR(A)IC model for delivery to the Norwegian Communications Authority
description:
The Norwegian Communications Authority intends to contract with one tenderer for the purpose of assistance in developing a cost model, or update existing model, based on an LR(A)IC methodology. As part of the assignment, the tender shall independently assess the strengths and weaknesses of various conceptual choices and assist Nkom in evaluating and determining the final conceptual choices for the chosen cost model. The selected tenderer must assist Nkom in developing a cost model that complies with the legal framework, including the relevant EC recommendation(s) and the European Electronic Communications Code (EECC). Commission Recommendation of 6 February 2024 on the regulatory promotion of Gigabit Connectivity, provides guidelines for the conceptual choices to be made.
location_id:
1 results
1. anyw
estimatedValue:
currencyCode:
NOK
amount:
8000000.0
type:
ANNOUNCEMENT_OF_COMPETITION
allTypes:
2 results
1. COMPETITION
2. ANNOUNCEMENT_OF_COMPETITION
status:
EXPIRED
issueDate:
2026-03-09T18:00:39Z
deadline:
2026-04-13T10:00:00Z
sentToTed:
yes
publicationDate:
2026-03-11
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.
id:
2025-107675
buyer:
1 results
1. id:
  417d81277743d17a8f644ddecf3ea0f3
  organization_id:
  974446871
  name:
  Nasjonal kommunikasjonsmyndighet (Nkom)
heading:
Market survey LRIC
description:
The Norwegian Communications Authority intends to contract with one tenderer for the purpose of assistance in developing a cost model, or update an existing model, based on an LR(A)IC methodology. The cost model will comply with the legal framework, including the relevant EC recommendation(s) and the European Electronic Communications Code (EECC). Commission Recommendation of 6 February 2024 on the regulatory promotion of Gigabit Connectivity, provides guidelines for the conceptual choices to be made. Technologies within scope of this assignment are FTTH technologies. This will at least include both P2P (‘point-to-point’) and PON (‘passive optical network’). The Cost model must have the capability to calculate costs for different types of operators with different scale and scope. The model will provide for cost modelling with Point of Handover at different network levels. It will also be able to provide for cost modelling of physical access (“fibre LLUB”), VULA, bitstream as well as access to pipes or subpipes. The model should also be capable of calculating separate costs for different types of geographic areas within an operator’s coverage.
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ADVISORY_NOTICE
allTypes:
2 results
1. ADVISORY_NOTICE
2. PLANNING
status:
not reported by source
issueDate:
2025-05-15T07:57:15Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2025-05-16
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.
id:
2025-116324
buyer:
1 results
1. id:
  9dcb62e612673c951b5e2a776d20264a
  organization_id:
  972417882
  name:
  Klima- og miljødepartementet
heading:
Nordic Roadmap for the introduction of sustainable zero-carbon fuels in shipping Phase 2: Implementation and realization 2025-2027
description:
Through the Nordic Council of Ministers, the Nordic countries are working together to establish green corridors for emission-free shipping between ports in the Nordic Region. On the basis of the work undertaken in the «Nordic Roadmap for the introduction of sustainable zero-carbon fuels in shipping» and the «Pilot project on green shipping corridors in the Nordics», this procurement aims to further develop green shipping corridors, supporting the transition to sustainable and emission-free maritime routes. The focus area for the programme is to stimulate decarbonization of shipping in the Nordic region, and to ensure that the green maritime industry in the Nordic countries will increase their competitiveness in this transition. The scope of this procurement, referred to as Phase II, centers on implementation and realization efforts. The two year programme (2025-2027) contains the following four project building blocks: 1. Moving Green Shipping Corridors into realization 2. Ensure safe port- and bunkering operations for sustainable zero carbon fuels 3. Continue and Strengthen the Nordic Collaboration Platform 4. Develop a Nordic green transition barometer for shipping The programme aims at involving stakeholders from the full Nordic region, maritime connectivity with neighbouring regions, and will take into account the special Nordic circumstances such as areas with ice-covered waters during winter. The value of the procurement is estimated to DKK 17 500 000 excl. VAT for the full programme period. For further information on the scope and content of the procurement, we refer to appendix 1.
location_id:
1 results
1. anyw
estimatedValue:
currencyCode:
NOK
amount:
17500000.0
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2025-11-06T13:46:29Z
deadline:
2027-12-31T00:00:00Z
sentToTed:
yes
publicationDate:
2025-11-10
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.
id:
2025-110359
buyer:
1 results
1. id:
  9dcb62e612673c951b5e2a776d20264a
  organization_id:
  972417882
  name:
  Klima- og miljødepartementet
heading:
Nordic Roadmap for the introduction of sustainable zero-carbon fuels in shipping Phase 2: Implementation and realization 2025-2027
description:
Through the Nordic Council of Ministers, the Nordic countries are working together to establish green corridors for emission-free shipping between ports in the Nordic Region. On the basis of the work undertaken in the «Nordic Roadmap for the introduction of sustainable zero-carbon fuels in shipping» and the «Pilot project on green shipping corridors in the Nordics», this procurement aims to further develop green shipping corridors, supporting the transition to sustainable and emission-free maritime routes. The focus area for the programme is to stimulate decarbonization of shipping in the Nordic region, and to ensure that the green maritime industry in the Nordic countries will increase their competitiveness in this transition. The scope of this procurement, referred to as Phase II, centers on implementation and realization efforts. The two year programme (2025-2027) contains the following four project building blocks: 1. Moving Green Shipping Corridors into realization 2. Ensure safe port- and bunkering operations for sustainable zero carbon fuels 3. Continue and Strengthen the Nordic Collaboration Platform 4. Develop a Nordic green transition barometer for shipping The programme aims at involving stakeholders from the full Nordic region, maritime connectivity with neighbouring regions, and will take into account the special Nordic circumstances such as areas with ice-covered waters during winter. The value of the procurement is estimated to DKK 17 500 000 excl. VAT for the full programme period. For further information on the scope and content of the procurement, we refer to appendix 1.
location_id:
1 results
1. anyw
estimatedValue:
currencyCode:
NOK
amount:
17500000.0
type:
ANNOUNCEMENT_OF_COMPETITION
allTypes:
2 results
1. COMPETITION
2. ANNOUNCEMENT_OF_COMPETITION
status:
AWARDED
issueDate:
2025-06-30T08:41:19Z
deadline:
2025-08-20T10:00:00Z
sentToTed:
yes
publicationDate:
2025-07-01
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.

limit:

offset:

returned:

has_more_results:

truncated:

Will you use the result in generated code?

Open the same result as JSON

Is data missing or incorrect? Send feedback about this result.

Continue exploring

How an AI agent should use this page

Ground rule: Navigate with HTML GET links to keep explanations and relationships. Use the page's JSON alternative only when concrete values must be extracted, compared or computed.

How to use the search_doffin lookup

Replace the placeholders in the HTML GET template; remove optional parameters you do not need.
Check types, units, limits and ID formats in the parameter table.
Follow linked results to canonical pages before combining sources.

Misreading to avoid: An empty list means "no results for this lookup". An error message or unavailable source does not mean the data does not exist.

Source-specific next step

Follow the notice ID to the canonical page; use CPV and location codes to narrow broad free-text searches.

Go to the source page for other operations. Use the JSON template only after the HTML result shows that the parameters and source are correct.

AI agent? Read the complete navigation and programming guide.