Changelog

China Address Standard article introduction.

This article describes how Chinese addresses are structured, why the same address is written largest-first in Chinese and smallest-first in English and pinyin, which of the several cities in an address is the city, what the six-digit postcode encodes, and why Hong Kong and Macao have their own country codes. It is the reference for anyone mapping Chinese business partner data into CDQ, or consuming curated Chinese addresses from CDQ.

API Versioning and Change Communication article introduction.

This article explains the difference between an API's major version and its x-build-version, how CDQ surfaces the build version in the specification and the portal, and how the per-API changelog tells you whether a change affects you. OpenAPI is the supported machine-readable format, so you do not need to keep your own historical spec archive.

Australia Address Standard article introduction.

This article describes how Australian addresses are structured, why the suburb rather than the city is the place on the address, how a unit (2/17) and a level are written in front of the street number, what the four-digit postcode tells you about the state, and why Norfolk Island, Christmas Island and the Cocos (Keeling) Islands have their own country codes. It is the reference for anyone mapping Australian business partner data into CDQ, or consuming curated Australian addresses from CDQ.

Egypt Address Standard article introduction.

This article describes how Egyptian addresses are structured, why the governorate is written on the envelope and the neighbourhood often stands in for the city, how the seven-digit postcode replaced the five-digit one, and why Giza addresses are so often recorded as Cairo. It is the reference for anyone mapping Egyptian business partner data into CDQ, or consuming curated Egyptian addresses from CDQ.

United Kingdom Address Standard article introduction.

This article describes how British addresses are structured, why the post town and the postcode carry the address while the county does not, what the postcode encodes, and why Jersey, Guernsey and the Isle of Man have their own country codes while Northern Ireland stays in GB. It is the reference for anyone mapping British business partner data into CDQ, or consuming curated British addresses from CDQ.

Saudi Arabia Address Standard article introduction.

This article describes how the Saudi National Address is structured, what the building number, the additional number and the postcode encode, why the additional number belongs in the postcode rather than in the district, and why the region is not written on the envelope. It is the reference for anyone mapping Saudi business partner data into CDQ, or consuming curated Saudi addresses from CDQ.

Data Sources Catalogue introduction.

The catalogue lists every data source CDQ reads company data from and shows what a record from that source contains once it is mapped to the CDQ business partner model: names, identifier types, address parts, legal form, status, industry codes, contact data, related persons and the corporate hierarchy. For the status it also says whether the value comes from the register or is set by CDQ. You can filter by country, source type, Free or Commercial access and by the data a source must provide, and a What's new tab records what changed per source. Planned sources are listed too.

Product news, special edition: Bank Account Prevalidation published.

Fraud Guard's Trust Score Check can now return a second, independent answer beside the CDQ Trust Score: the current status of the bank account, straight from the account-holding bank, and whether it belongs to the named owner. The special edition explains where it fits into business processes, the traffic light, how a request is processed, coverage, availability and the commercial frame.

Canada Address Standard article introduction.

This article describes how Canadian addresses are written in English and in French, why a unit number written in front of the civic number with a hyphen is not part of the house number, how the first letter of the postal code identifies the province, and how CDQ derives the province from the postal code. It is the reference for anyone mapping Canadian business partner data into CDQ, or consuming curated Canadian addresses from CDQ.

Italy Address Standard article introduction.

This article describes how Italian addresses are structured, why the two-letter province code is part of the postal address and belongs at the second administrative level, how the floor and the unit reach the SAP fields, and why San Marino and the Vatican are separate countries while Livigno and Campione d'Italia stay Italian. It is the reference for anyone mapping Italian business partner data into CDQ, or consuming curated Italian addresses from CDQ.

Argentina Address Standard article introduction.

This article describes how Argentine addresses are structured, why the first letter of the CPA post code identifies the province, why Buenos Aires is two separate units, and how the floor and the department reach the SAP fields. It is the reference for anyone mapping Argentine business partner data into CDQ, or consuming curated Argentine addresses from CDQ.

Mexico Address Standard article introduction.

This article describes how Mexican addresses are structured, why the colonia and the interior number belong in the address, how the state is resolved from its postal abbreviation, and how the floor and the unit reach the SAP fields. It is the reference for anyone mapping Mexican business partner data into CDQ, or consuming curated Mexican addresses from CDQ.

Brazil Address Standard article introduction.

This article describes how Brazilian addresses are structured, why the bairro and the state abbreviation belong in the address, and how the complemento reaches the SAP fields. It is the reference for anyone mapping Brazilian business partner data into CDQ, or consuming curated Brazilian addresses from CDQ.

CDQ MCP is now published on the portal.

CDQ MCP is a Model Context Protocol server at https://api.cdq.com/mcp that lets an AI assistant look up business partners by name, address and identifiers. It exposes one tool, reference_data-lookup_business_partners, and authenticates with OAuth 2.1, so a client that supports remote MCP servers connects to it once the user signs in with a CDQ account. The quickstart covers the server URL, the tool, and the authorization endpoints.

Product news, October 2026 published.

The October edition covers nine products: the bank's confirmation of account and owner name in the Fraud Guard Trust Score Check, peer benchmarks and workspace-level figures in CDQ Insights, Malta's business register in CDQ Lookup, more precise identifier checks for five countries in Tax Guard, and what is coming next.

Identifier rules and descriptions update

12 new data quality rules now check identifiers from Croatia, Argentina, Canada, Azerbaijan and South Korea. We have also corrected the descriptions of several EU VAT identifiers in the CDQ Wiki, so that findings are both more complete and explained correctly.

New rules. All new rules are in the HYPERCARE status:

• Croatia:
  • Identifier checkdigit invalid (Personal Identification Number (Croatia)) with the ERROR criticality
  • Deprecated identifier found (Personal Identification Number (Croatia)) with the WARNING criticality
• Argentina:
  • Identifier format invalid (CDI number (Argentina)) with the ERROR criticality
  • Identifier checkdigit invalid (CDI number (Argentina)) with the ERROR criticality
  • Identifier checkdigit invalid (CUIL number (Argentina)) with the ERROR criticality
  • Inconsistency between DNI number and CUIL number (Argentina) with the ERROR criticality
• Canada:
  • Identifier format invalid (Harmonized Sales Tax number (Canada)) with the ERROR criticality
  • Identifier checkdigit invalid (Harmonized Sales Tax number (Canada)) with the ERROR criticality
  • Inconsistency between Business Number and HST number (Canada) with the ERROR criticality
• Azerbaijan:
  • Identifier format invalid (Personal Identification Number (Azerbaijan)) with the ERROR criticality
• South Korea:
  • Identifier format invalid (Business Registration Number (South Korea)) with the ERROR criticality
  • Identifier checkdigit invalid (Business Registration Number (South Korea)) with the ERROR criticality

The new rules can be found through the Data quality rules page in the CDQ Wiki.

Changes per country:

• Croatia: the Personal Identification Number (HR_OIB) is now checked for its check digit (ISO 7064 MOD 11,10). A value maintained as OIB that has the structure of the old thirteen-digit JMBG, which the OIB replaced in 2009, is now flagged so that the record can be updated.
• Argentina: two new identifier types are available: AR_CDI (Clave de Identificación, assigned by AFIP to natural persons who hold neither a CUIT nor a CUIL) and AR_DNI (Documento Nacional de Identidad). The CUIL is now checked for its check digit and against the DNI it contains.
• Canada: the Harmonized Sales Tax number is now checked for its format and check digit, and against the Business Number it is built from. The Provincial Sales Tax identifier (PST_CA) now refers to British Columbia only, written as PST followed by eight digits, for example PST-1234-5678. Manitoba and Saskatchewan are documented as separate identifier types. New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario and Prince Edward Island apply the Harmonized Sales Tax instead.
• Azerbaijan: the ten-digit Tax Registration Number has a new description. The Personal Identification Number (PIN) is now available as a dedicated identifier type with its own format rule.
• South Korea: the Business Registration Number is now available as a dedicated identifier type next to the VAT registration number, with format and check digit rules.

Corrected EU VAT identifier descriptions:

• EU_VAT_ID_LT (Lithuania): the 12-digit VAT number is described as the ordinary format for companies registered since about 2004, not as a temporary registration.
• EU_VAT_ID_PT (Portugal): a Portuguese VAT number is valid in VIES only after the taxpayer has declared intra-EU operations.
• EU_VAT_ID_SE (Sweden) and EU_VAT_ID_EE (Estonia): every VAT-registered business receives a VAT number, not only intra-EU traders. Every Swedish VAT number ends in 01.
• EU_VAT_ID_NL (Netherlands): named btw-identificatienummer. Since 2020 it no longer contains a sole trader's personal number (BSN).

Corrected official names, issuing bodies and links:

• DE_TAX_ID (Germany) is attributed to the local tax office, and EU_VAT_ID_DE to the Federal Central Tax Office (BZSt).
• EU_VAT_ID_HU (Hungary) carries its legal name közösségi adószám and names the Tax and Customs Administration as issuer. HU_CRN, HU_TAX_ID and HU_TIN carry their official Hungarian names.
• France: the description of EU_VAT_ID_FR was corrected, links in FR_RC and FR_SIRENE to the closed sirene.fr site were replaced, and the legal form SAS (FR_1687) now sits in the correct category.
• The Register of Donation Recipients (DE.ZER) now links to its current address, https://zer.bzst.de/.

The updated identifier types can be found through the Business identifier metadata page, the legal forms through the Legal form metadata page, and DE.ZER through the Data sources page in the CDQ Wiki.

All changes are already available.

Articles and product manuals are now one Product Manual, ordered by product: Address Guard, Tax Guard, Duplicate Guard, CDQ Genius, and CDQ Platform. Every page keeps its address, so existing links and bookmarks still work, and the former Articles page now opens the Product Manual overview.

The documentation navigation is now split into two sections:

• Product Docs - collects the articles, the monthly product news, and the product manuals.
• Developer Docs - collects the tutorials, instructions, and API specifications.

In the sidebar menu: Getting started, Developer Guidelines, TLS Certificates, and the Changelog sit above both sections as shared entry points, so you reach them from either one. The landing page follows the same two-section layout.

The Product Manuals section now holds its first two manuals.

Duplicate Guard Integration explains how a Duplicate Guard Monitor, the link database, and connected-component grouping fit together when you consume duplicate detection from your own system instead of from the CDQ Cloud Apps.

Data Mirror Integration covers both directions of a Data Mirror integration: the three routes for writing business partners in, how to read curated results back out incrementally, and the operational details that account for most of the time lost during a first integration. For the underlying concepts, read the Data Mirror article first.

The Changelog page now has three combined filter dropdowns:

• Status (New / Improved / Retired),
• Type (Documentation / Portal Functions / Specifications), and
• Product (API specification name).

All filters work together, selecting "New" and "Specifications" shows only new API spec entries. The previous single "Entry type" filter has been replaced by this three-axis system.

Every API page in the sidebar now includes a Changelog link that opens the changelog pre-filtered to entries for that API. For example, browsing the Data Exchange API and clicking Changelog shows only Data Exchange API changelog entries. The link is available for all API groups: CDQ APIs, Vendor Extensions, A2A Protocols, and MCP Servers.

CDQ Genius A2A v1 is now publicly available in BETA.

CDQ Genius can now be called by other AI agents and orchestration frameworks via the Agent2Agent (A2A) 1.0 protocol with a JSON-RPC 2.0 binding. The spec exposes three operations: message/send, tasks/get, and tasks/cancel.

Product news, September 2026 published.

Product news is a new monthly page alongside this Changelog. The Changelog stays the authoritative record of every individual change; product news explains once a month what a release means in practice, with worked examples. The September edition covers CDQ Genius, CDQ Data Sharing Platform, Partner Guard, Duplicate Guard, Data Quality Guard, CDQ Lookup, Fraud Guard, Tax Guard and AML Guard.

Release archive published.

The 329 CDQ release notes published between December 2020 and September 2026 are now on the portal, one page per year. They were written at the time of each release and are kept for reference, so they may describe apps and endpoints that have since changed. This Changelog remains the current record.

CDQ Genius Capabilities article introduction.

This article explains what CDQ Genius orchestrates behind the conversation: identity lookup, duplicate detection, web research, curation, validation, qualification, sanction screening, bank account verification and knowledge, with every answer tied to a named source and confidence grade.

WSDL and WADL specification files are now reliably available for download from the API Specifications page. Previously, these files were generated on demand by an external conversion service, which caused occasional download failures. All files are now pre-generated and served directly as static assets, so downloads no longer depend on any external service availability. The WSDL and WADL files are automatically updated whenever a new API version is released, ensuring that the specifications are always current.

Thailand Address Standard article introduction.

This article describes how Thai addresses are structured, how CDQ models them in the CDQ address model, and what reference data CDQ maintains for Thailand. It is the reference for anyone mapping Thai business partner data into CDQ, or consuming curated Thai addresses from CDQ.

The Changelog page is now filterable by entry type. A multi-select filter at the top of the page lets you narrow the timeline to the entry types you care about, for example only new content or only new API versions. Clearing the filter shows the full timeline again.

How to Confirm a Business Partner's Identity and Data Quality? tutorial introduction.

This tutorial shows how to make a first call to the Confirm Business Partner endpoint and interpret the consolidated response, which combines company, data quality, tax qualification, and sanction checks into one overall confirmation decision.

How to Show Business Partners with Data Quality Issues from CDQ.POOL in Lookup tutorial introduction.

This tutorial shows how to enable the SHOW_CDQ_POOL_QUALITY_ISSUE_RECORDS feature so Lookup also returns CDQ.POOL Business Partners with WARNING or ERROR quality status, together with a quality indicator and a filter to narrow results by quality status.

How to Enable Receiving Lower-Quality CDQ.POOL Data for Updates and Augmented BPs tutorial introduction.

This tutorial shows how to configure the Augmentation Configurator to include lower-quality CDQ.POOL records, setting the maximum allowed finding severity independently for Lookup & Augmentation and for Update Monitoring.

How to share Business Partner into CDQ.POOL? tutorial modification.

• Clarified that Business Partners can be shared to CDQ.POOL only from a Production workspace.
• Documented that sharing from a Sandbox workspace is blocked in both the APP and the API, including behaviour when a workspace switches between Production and Sandbox.

CDQ Analytics API v2 is now available.

The API generates and retrieves reporting artifacts such as Excel reports and charts in a unified, flexible, and secure way.

How to Fetch Business Partner Relations from CDQ.POOL tutorial introduction.

This tutorial shows how to explore the organizational structure of a Business Partner available in CDQ.POOL directly from the First Time Right application, using the Fetch BP Relations feature to retrieve related Legal Entities, Organizational Units, and Operational Entities in a single action.

• Information about upcoming and currently used TLS certificates has been moved to the new page TLS Certificates
• It replaced the existing section of the same name in the Developer Guidelines.
• The link to the new page is located in both the main menu and the sidebar menu.

The What's New page has been discontinued and its content merged into this Changelog. All previous entries are available below in chronological order.

Legacy Validation deprecated

Two endpoints in the Data Validation API are being retired: the Validate Business Partner endpoint (v1), superseded by the v2 version with extended identifier and legal form detection, and the Start Record Validation Job endpoint (v2), which is discontinued in favour of Data Quality Monitors on Data Mirrors.

Read more details

Check the Reliability endpoint deprecated

The Confirm Bank Account endpoint in Bank Account Data API v1 is being retired and replaced by the updated Confirm Reliability endpoint in v2, which adds fraud case detection against the CDQ Blacklist and a structured JSON request body in place of query parameters.

Read more details

Integration of the Thailand Department of Business Development Company Register

CDQ has integrated the official Thailand Department of Business Development Company Register (TH.CR) as a new data source, expanding coverage of Thai legal entities with authoritative data including registration numbers, legal names, business objectives, and structured addresses.

Read more details

The CDQ Developer Portal's layout and navigation have been improved for better user experience.

How to create custom data transformations in Bank Account Data Mirror tutorial introduction.

This tutorial shows you how to create custom mappings tailored to your file structure.

Understanding the Duplication Guard Matching Process article introduction.

How to set up and activate Duplicate Guard Monitor tutorial introduction.

This tutorial explains how to configure, activate, and analyze results from a Duplicate Guard Monitor in CDQ.

How to Define and Use Data Transformation Definitions (DTD) instruction introduction.

This guide explains the structure of a DTD and provides practical mapping examples.

How to upload payment files using APP? tutorial introduction.

This guide explains how you can securely upload payment files to the Fraud Guard service for analysis.

The How to search for Business Partners? tutorial has been updated.

How to upload payment files? tutorial introduction.

This guide explains how you can securely upload payment files to the Fraud Guard service for analysis.

How to synchronize data with the Data Mirror? instruction introduction.

This instruction explains how to synchronize business partner data with the CDQ Data Mirror using upsert and import job strategies.

How to manage Email Domain Guard Configuration in Cloud Apps? tutorial introduction.

This guide will walk you through the process of configuration Email Domain Guard feature in Cloud Apps.

How to Email Domain Guard in Cloud Apps? tutorial introduction.

This guide will walk you through the process of using Email Domain Guard feature in Cloud Apps.

How to verify e-mail address? tutorial introduction.

This guide will walk you through the process of using Email Notification feature in Cloud Apps.

Transformation API v1 is now available.

The Setup SSO in Microsoft Azure instruction has been updated.

How to Manage EDG Configuration? instruction introduction.

This guide will walk you through the process of creating, reading, updating, and deleting your personalized configuration, which you can later use in the Email Domain Guard API to verify and analyze email addresses.

The Understanding the Qualification Process article has been updated.

The Knowledge Base page was renamed to Articles.

Case Management API v1 is now available.

How to monitor HCP/HCO Business Partners tutorial introduction.

This tutorial presents a sequence of activities for retrieving updates from HCP/HCO Business Partners and browsing & analyzing them.

The How to share Business Partner updates is replaced by How to share Business Partner into CDQ.POOL tutorial.

The Safe consumption of enums paragraph has been added to the Implementation section in the Developer Guidelines page.

How to qualify a Business Partner using First Time Right app tutorial introduction.

This tutorial presents a sequence of steps to qualify a Business Partner with identifiers.

How to manage compliance cases tutorial introduction.

This tutorial presents a sequence of activities for enabling organizations to evaluate compliance hits, document actions, and resolve cases systematically.

How to qualify identifiers tutorial introduction.

This tutorial presents a sequence of steps to qualify identifiers.

How to update a Business Partner's attributes with qualification tutorial introduction.

This tutorial presents a sequence of steps to update a Business Partner's attributes.

How to qualify a Business Partner with local registers tutorial introduction.

This tutorial presents a sequence of steps to qualify a Business Partner with local registers.

The Values character limit has been added to the Developer Guidelines page.

How to qualify a European Union's Business Partner tutorial introduction.

This tutorial presents a sequence of steps to qualify a European Union's Business Partner.

The Data Clinic API documentation was updated with new unified endpoint naming conventions. Check the table below to verify the changes:

How to Customize the Golden Record APP tutorial introduction.

This tutorial presents a sequence of activities for setting data source prioritization and customizing the Golden Record.

The Data Compliance API documentation was updated with new unified endpoint naming conventions. Check the table below to verify the changes:

Qualification process introduction.

This description presents a Qualification process and how it works.

Renaming the Identity Management API to Organization Management API.

How to do bulk matching and enrichment? APP and API tutorial modification.

Adjusting screenshots to internal CDQ quality rules.

Business Network API turn to the BETA phase.

Data Exchange API v5 turn from BETA to latest.

Data Validation API v3 is now available. The v3 is in the BETA phase.

New endpoints:

Monitor Business Partner Updates API tutorial modification.

• Adjusting tutorial to a new API version.
• Adjusting screenshots to internal CDQ quality rules.

Monitor Business Partner Updates APP tutorial modification.

• Adjusting tutorial to a new API version.
• Adjusting screenshots to internal CDQ quality rules.

How to do bulk matching and enrichment? APP tutorial modification.

• Adjusting tutorial to a new API version.

New Articles page introduction.

The purpose of the Articles is to provide in-depth information about the CDQ Cloud Services. The Articles are designed to help you understand the core concepts of the CDQ Products, its features, and how to use them effectively.

How to verify e-mail address? API tutorial introduction.

This tutorial presents a sequence of activities for checking an e-mail domain.