ComparisonEU

DMA vs Data Act Gatekeeper obligations and data-sharing rules

Use this comparison to separate DMA gatekeeper duties for core platform services from the Data Act's broader access-to-data framework.

The DMA side focuses on gatekeeper designation, Articles 5 to 7 obligations, data access, interoperability, Article 11 reporting, and Commission enforcement.

Author
Sorena AI
Published
May 9, 2026
Updated
May 9, 2026
Sections
3

Structured answer sets in this page tree.

Primary sources
5

Cited legal and guidance references.

Publication metadata
Sorena AI
Published May 9, 2026
Updated May 9, 2026
Overview

The EU Digital Markets Act and EU Data Act can both touch platform, product, cloud, and data teams, but they do not ask the same question. The DMA starts with whether a designated gatekeeper provides a listed core platform service and must comply with conduct obligations under Articles 5, 6, and 7. The Data Act starts from access to and use of data, especially data generated by connected products or related services, data-sharing terms, public-sector access requests, and switching between data processing services. Timings in this page are source-linked; verify current legal source language before implementation decisions.

Side-by-side comparison

EU Digital Markets Act vs EU Data Act

Compare the regimes by the factual trigger, obligated actor, operational duty, evidence, timing, enforcement path, and overlap rule.

Review all sources
First framework
EU Digital Markets Act

The DMA is a gatekeeper regime for designated core platform services. It imposes conduct, data access, choice, interoperability, reporting, and anti-circumvention duties on designated gatekeepers.

Second framework
EU Data Act

The Data Act is a horizontal data-access and data-use regime. In this comparison, keep it focused on data generated by connected products or related services, data-sharing terms, public-sector access requests, and switching between data processing services.

Comparison row 1

Scope boundary

EU Digital Markets Act

Starts with a designated gatekeeper and each core platform service listed in the Commission designation decision, including categories such as online intermediation, search, social networking, video sharing, number-independent messaging, operating systems, browsers, virtual assistants, cloud computing, and online advertising.

EU Data Act

Starts with access to and use of data, especially connected-product and related-service data, data-holder availability duties, public-sector access where the Data Act permits it, and data-processing-service switching.

Operational implication

A large digital platform is not automatically a DMA workstream for every service, and a data access request is not automatically a Data Act workstream for every dataset. Record the gatekeeper/CPS trigger separately from the Data Act data trigger.

Comparison row 2

Covered actors

EU Digital Markets Act

The obligated actor is the designated gatekeeper for the relevant core platform service. Implementation usually involves competition counsel, product owners, platform engineering, data teams, developer relations, advertising, search/ranking, app-store, browser, operating-system, or messaging teams depending on the obligation.

EU Data Act

The relevant actors depend on the Data Act role: user, data holder, data recipient, product or related-service provider, public-sector requester, or provider of data processing services.

Operational implication

Assign owners by legal role and product surface, not by a generic 'data platform' label.

Comparison row 3

Trigger

EU Digital Markets Act

Articles 5, 6, and 7 cover gatekeeper conduct duties such as limits on certain data combination, business-user offer freedom, complaint freedom, advertising transparency, non-public business-user data use, default settings, app-store access, self-preferencing in ranking, switching, interoperability, advertising measurement data, end-user portability, business-user data access, search-data access, fair access conditions, and messaging interoperability.

EU Data Act

The Data Act comparator covers making data available, terms for data sharing, public-sector access where the Act permits it, and switching or interoperability requirements for data processing services.

Operational implication

Translate DMA duties into service-specific product controls and Article 11 evidence; translate Data Act duties into data-access, contract, request-handling, or switching controls.

Comparison row 4

Core obligations

EU Digital Markets Act

DMA data work is tied to gatekeeper obligations: business users can need access to data generated through their use of the relevant core platform service, end users can need portability, advertisers and publishers can need measurement data, and search competitors can request certain ranking, query, click, and view data on fair, reasonable, and non-discriminatory terms.

EU Data Act

Data Act data work is broader and starts from the data covered by the Act, including connected-product and related-service data and the rules for making that data available to users, third parties, or public-sector bodies where applicable.

Operational implication

A DMA business-user data-access control should cite the relevant Article 6 obligation and CPS; a Data Act data-access control should cite the data category, data holder, user or recipient, and request route.

Comparison row 5

Evidence record

EU Digital Markets Act

Article 11 requires a gatekeeper to provide the Commission, within 6 months after designation, a detailed and transparent report on measures implemented to ensure Articles 5 to 7 compliance, publish and provide a non-confidential summary, and update the report and summary at least annually.

EU Data Act

The Data Act comparison should maintain evidence for the applicable data-access, data-sharing, public-sector request, contract-term, or switching obligation; it does not use the DMA Article 11 compliance-report template.

Operational implication

Use Article 11 evidence for DMA only. The report should be organized by core platform service and obligation, with supporting data, internal documents, implementation dates, product scope, geography, technical changes, user-interface changes, business-user terms, consultation evidence, and alternatives considered where applicable.

Comparison row 6

Timing and deadlines

EU Digital Markets Act

DMA timing is driven by designation and ongoing compliance. Article 11 sets the 6-month post-designation reporting point and at-least-annual updates; product changes that affect Articles 5 to 7 controls should be reviewed before release because the gatekeeper must ensure and demonstrate effective compliance.

EU Data Act

Data Act timing should be checked against the applicable Data Act provision, product or service launch, access request, contract event, public-sector request, or data-processing-service switching event.

Operational implication

Do not reuse a single compliance calendar label. Track DMA designation and Article 11 cycles separately from Data Act product, request, contract, and switching milestones.

Comparison row 7

Enforcement

EU Digital Markets Act

The Commission is the sole DMA enforcer, with cooperation mechanisms for Member State authorities. DMA non-compliance can lead to Commission decisions, remedies, fines up to 10% of total worldwide turnover, up to 20% for certain repeat infringements, and periodic penalty payments up to 5% of average daily worldwide turnover.

EU Data Act

The Data Act enforcement route is separate from DMA gatekeeper enforcement. Use the Data Act source and competent-authority analysis for Data Act penalties, rather than borrowing DMA fine caps.

Operational implication

Escalate DMA risk to the gatekeeper's Commission-facing team and Article 11 evidence owners. Escalate Data Act risk through the owners responsible for the relevant data-access, request, contract, or switching obligation.

Comparison row 8

Overlap and reuse

EU Digital Markets Act

Keep DMA labels on facts tied to a designated gatekeeper, CPS, Articles 5 to 7 obligation, Article 11 report, Article 6(7) or Article 7 interoperability request, or Commission DMA proceeding.

EU Data Act

Keep Data Act labels on facts tied to covered data, data-holder availability, user or third-party access, B2B terms, public-sector access, or data-processing-service switching.

Operational implication

A shared evidence pack is acceptable only if each item states which law it supports. Avoid one blended 'platform data compliance' control that hides the DMA gatekeeper/CPS test or the Data Act data-role test.

Comparison row 9

Practical decision rule

EU Digital Markets Act

DMA interoperability can arise under Article 6(7) for operating-system, virtual-assistant, hardware, and software features, and under Article 7 for number-independent interpersonal communications services. The Commission's interoperability Q&A shows how specification decisions can make this operational for business users and developers.

EU Data Act

Data Act interoperability is a separate data and data-processing-services topic; do not use DMA Article 6(7) or Article 7 language unless the service is a designated DMA core platform service.

Operational implication

For DMA, keep records of requests, eligibility decisions, technical interfaces, API documentation, security or integrity justifications, developer communications, and Commission specification materials. For Data Act, keep the switching or data-interoperability record separate.

Practical decision rule

How to decide which workstream owns an issue

  • Use DMA when the issue depends on a designated gatekeeper, a listed core platform service, or an Articles 5 to 7 obligation.
  • Use Data Act when the issue depends on access to or use of covered data, data sharing, public-sector access, contract terms, or data-processing-service switching.
  • Use both only when the same product or data flow independently satisfies both triggers; keep the source, article, actor, evidence, and enforcement path separate.
  • If the issue is a gatekeeper's product release, ranking change, app-store rule, data-access interface, interoperability process, or Article 11 report update, run a DMA review before treating it as a general data-governance change.
Section 1

The fast distinction

Use the DMA column when the work concerns a designated gatekeeper, a designated core platform service, or a change to business-user access, end-user choice, ranking, advertising transparency, data portability, business-user data access, app stores, operating systems, browsers, or messaging interoperability.

Use the Data Act column when the work concerns access to data generated by connected products or related services, making data available to users or third parties, contractual terms for data sharing, public-sector access in exceptional-need scenarios, or switching between data processing services.

  • Do not treat a DMA data-access obligation as a general Data Act access request; tie it to the relevant gatekeeper core platform service and Article 6 duty.
  • Do not treat every Data Act data-sharing workflow as a DMA issue; the DMA applies to designated gatekeepers and their listed core platform services.
  • When both laws are relevant, keep one evidence file but label each item by source, article, actor, service, and request type.
Section 2

Where DMA implementation gets concrete

For DMA work, the practical unit is not a generic platform or account. It is a designated gatekeeper and each core platform service listed in the Commission designation decision. The Commission publishes and updates the gatekeeper and core-platform-service list, and the obligation analysis should follow that list.

The strongest DMA evidence is service-by-service: Article 5 conduct controls, Article 6 controls that may need technical implementation or further specification, Article 7 number-independent interpersonal communications interoperability where applicable, and Article 11 reporting material that explains the measures in detail.

  • Keep a CPS register showing the gatekeeper, service, designation case, affected product surfaces, business users, end users, and owner.
  • Map each Articles 5 to 7 duty to the product, API, ranking, data, advertising, choice-screen, app-store, browser, operating-system, or messaging surface it affects.
  • For Article 11, retain the compliance statement, implementation explanation, supporting data, internal documents, user-interface evidence, technical change notes, consultation evidence, and non-confidential summary.
Section 3

Overlap that teams commonly misread

Both laws can use the language of data access, portability, interoperability, and business users. The source of the duty changes the implementation. Under the DMA, Article 6 includes duties such as business-user access to data generated in the context of relevant core platform services, end-user portability, search-data access, advertising measurement access, and interoperability with operating-system, hardware, or software features.

The Data Act comparison should stay separate unless the fact pattern is really a Data Act data-availability, data-sharing, public-sector access, contract-term, or cloud-switching issue. A single product team may own both, but the legal trigger and evidence labels should not be merged.

  • For DMA self-preferencing, test ranking and related indexing or crawling for services and products offered by the gatekeeper itself versus similar third-party offerings.
  • For DMA interoperability, distinguish Article 6(7) operating-system, virtual-assistant, hardware, and software feature access from Article 7 messaging interoperability.
  • For Data Act work, keep the comparator at the data-access or switching layer unless the Data Act source being used supports a more specific claim.
Primary sources

References and citations

digital-markets-act.ec.europa.eu
Referenced sections
  • Supports checking the Commission's gatekeeper and core-platform-service list before treating a service as DMA-covered.
"core platform services"
eur-lex.europa.eu
Referenced sections
  • Supports the separate Data Act ownership rule for data access, data use, and switching workstreams.
"make data available"
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