Data Processing Agreement (DPA): What You Need to Know

If your online store collects customer data and uses third-party tools to manage, store, or analyze it, you’re already in data processing territory, and that means a data processing agreement (DPA) likely applies to you.

This isn’t just a legal technicality for large enterprises. WooCommerce stores using payment gateways, email marketing platforms, analytics tools, or cloud-based CRMs are routinely sharing personal customer data with external processors. The DPA is the contract that governs how that data is handled.

Here’s everything you need to know: what a DPA is, what it must contain, which laws require it, and how to actually put one in place.

A Data Processing Agreement (DPA) is a legally binding contract between a business (the data controller) and an external service provider (the data processor) that handles personal data on the business’s behalf. Its primary purpose is to ensure that personal data is processed securely and complies with data protection laws, such as the General Data Protection Regulation (GDPR).

A data processing agreement is a legally binding contract between a data controller (the business that collects and owns the data) and a data processor (the third-party service that handles that data on the controller’s behalf).

The DPA sets the rules for how the processor can use the data, how long it can store it, what security measures must be in place, and what happens in the event of a breach.

You’ll sometimes see it called a data processing addendum, especially when vendors like Mailchimp or Google attach it to their main service terms. Same document, different name.

The DPA doesn’t define why you’re collecting the data. It governs how the processor handles it once they have it.

The obvious reason to have a DPA is legal compliance. But there are more practical reasons it matters, especially for eCommerce businesses.

• Legal protection: Under GDPR and similar laws, the data controller (you) can be held liable for a processor’s security failures, even if the breach happens entirely on their end. A well-written DPA limits that exposure by placing clear obligations on the processor and documenting that you did your due diligence.
• Customer trust: Research from Salesforce found that 71% of customers are more likely to trust a company with their data when there’s clear transparency about how it’s used. A DPA is the mechanism that makes that transparency enforceable, not just aspirational.
• Control over sub-processors: Your email platform probably uses sub-processors — data centers, analytics tools, and deliverability services. Without a DPA, you have no formal visibility into that chain. With one, the processor is required to disclose sub-processors and hold them to the same standards.
• Defined breach response: A DPA specifies exactly what the processor must do when something goes wrong: notify you within a specific timeframe, describe what was accessed, and assist with any regulatory reporting. Without that in writing, you’re relying on goodwill.
• Operational clarity: The DPA forces both parties to document how data flows, who can access it, and what happens when the contract ends. That documentation is genuinely useful, not just regulatory paperwork.

Any time a third party processes personal data on your behalf, you need a DPA. For a WooCommerce store, that’s almost certainly the case if you use any of the following:

• A payment gateway (Stripe, PayPal, Mollie, iDEAL)
• An email marketing or automation platform (Mailchimp, Klaviyo, ActiveCampaign)
• A CRM or customer data platform
• Web analytics tools (Google Analytics, Matomo)
• Cloud hosting or storage services (AWS, Google Cloud)
• Outsourced customer support tools
• Advertising platforms that receive audience data (Google Ads, Meta)
• Any plugin that transmits customer data to an external API

Geography matters too. If you collect data from customers in the EU, you need GDPR-compliant DPAs with your processors, regardless of where your business is based. Selling to California residents triggers CCPA obligations. The laws are extraterritorial; they follow the data subject, not the business address.

One more thing worth knowing if you sell to EU customers: your compliance obligations don’t stop at data protection. EU consumer law also grants buyers a 14-day EU right of withdrawal on online orders, which WooCommerce stores can handle with a dedicated withdrawal button on the My Account page.

Data processing agreements aren’t a single-jurisdiction concern. Multiple privacy laws around the world now mandate them, each with slightly different requirements.

GDPR (European Union)

Article 28 of the GDPR requires a formal contract between controllers and processors. It must specify processing instructions, security measures, breach notification timelines, data subject rights obligations, and sub-processor controls. Non-compliance can result in fines of up to €20 million or 4% of global annual turnover, whichever is higher.

UK GDPR

Post-Brexit, the UK operates its own version of GDPR under the Data Protection Act 2018. The requirements for data processing contracts mirror the EU GDPR but fall under the ICO’s jurisdiction. Fines can reach £17.5 million or 4% of global annual turnover.

CCPA / CPRA (California)

The amended CCPA (via the California Privacy Rights Act) requires written contracts with service providers, contractors, and third parties that process California residents’ personal data. These contracts must prohibit the processor from selling or using the data outside the agreed purpose.

LGPD (Brazil)

Article 39 of Brazil’s Lei Geral de Proteção de Dados requires strict contractual agreements between controllers and processors. Non-compliance can result in fines up to 2% of annual revenue, capped at 50 million BRL.

PDPA (Singapore)

Singapore’s Personal Data Protection Act requires organizations to ensure that data intermediaries comply with data protection and retention obligations. Fines can reach SGD 1 million or more, depending on severity.

The specific requirements vary by jurisdiction, but a solid DPA generally covers the following elements.

1. Parties and Definitions

Clearly identify the data controller and data processor. Define all key terms used in the agreement (personal data, processing, data subjects, breach, etc.), so there’s no room for misinterpretation down the line.

2. Purpose and Scope of Processing

Specify why the processor is handling the data, what types of data are involved (names, emails, payment details, browsing behavior), and which categories of people the data relates to (customers, newsletter subscribers, etc.). The processor can only use the data for the purposes specified here.

3. Duration and Data Deletion

State how long processing is authorized and what happens to the data when the relationship ends. The processor should be contractually required to delete or return all personal data once the contract terminates.

4. Security Measures

This is one of the most substantive parts of any DPA. It should specify:

• Encryption standards (in transit and at rest)
• Access controls and authentication requirements
• Physical security for data storage infrastructure
• Regular security testing and vulnerability management
• The processor’s incident response procedures

5. Sub-Processor Controls

Processors frequently rely on their own third-party services to do their job. Your DPA should require the processor to get your written approval before engaging any new sub-processor and to hold sub-processors to the same data protection standards.

6. Data Breach Notification

If a breach occurs, you need to know fast. GDPR requires controllers to notify the relevant supervisory authority within 72 hours. Your DPA should require the processor to notify you without undue delay, including a description of the breach, the data involved, the likely impact, and the remediation steps being taken.

7. Data Subject Rights

Under GDPR and similar laws, your customers have rights: to access their data, correct it, delete it, and restrict its processing. Your DPA should obligate the processor to assist you in fulfilling these requests within the required timeframes.

8. Audit Rights

The controller should have the right to audit the processor’s compliance with the DPA. The agreement should specify how audits are requested, how often they can occur, and what access the processor must provide.

9. International Data Transfers

If data is transferred outside the EU (or UK), additional protections are required. The DPA should address the mechanism for lawful international transfers, which typically means one of the following:

• Standard Contractual Clauses (SCCs): Pre-approved contract templates from the European Commission that processors and controllers can adopt for cross-border transfers.
• Adequacy decisions: If the receiving country is recognized by the EU as providing equivalent data protection (e.g., Japan, Canada), transfers are permitted without additional safeguards.
• Binding Corporate Rules (BCRs): Used for transfers within multinational corporate groups.

If your store sells to EU customers and your processor is US-based (which is common with many SaaS tools), this section of the DPA is important.

10. Privacy by Design

GDPR Article 25 requires data protection to be built into processing systems by default, not bolted on afterward. A strong DPA includes language requiring the processor to implement privacy-by-design principles: collecting only the minimum data necessary, defaulting to the most privacy-protective settings, and building safeguards into its infrastructure at the architecture level.

11. Liability and Indemnity

Defines who bears responsibility if something goes wrong. Both parties need to understand their exposure so they can take appropriate steps to minimize risk.

12. Governing Law and Jurisdiction

Since privacy laws vary by region, the DPA must specify which jurisdiction’s laws govern the agreement and where disputes will be resolved.

There are four practical approaches, and the right one depends on the complexity of your data processing activities.

• Seek legal counsel: If you run a high-volume store, process sensitive data (health, financial), or operate in multiple regulated jurisdictions, get a lawyer involved. This isn’t overkill; the cost of getting it wrong is higher.
• Use a DPA generator or managed solution: Tools like Termly and similar compliance platforms generate DPAs based on your answers to a questionnaire. They’re faster and cheaper than legal counsel for straightforward use cases and keep the output aligned with current legislation.
• Use a template: The GDPR official website and various legal compliance resources offer downloadable DPA templates. These require more manual effort than a generator but give you a solid structural foundation to work from.
• Accept the vendor’s DPA: Most major platforms (Google, Stripe, Mailchimp, HubSpot) publish their own DPAs that you can sign as the controller. These are built to meet regulatory requirements but are written to the processor’s advantage. Review them carefully before signing.

Your role in the DPA changes depending on which side of the relationship you’re on.

If You’re the Data Controller

This is typically your position as a store owner. You’re collecting customer data and hiring third parties to handle it. Before signing any DPA:

• Confirm the processor has the security infrastructure to actually deliver on what the DPA promises
• Check that the scope of data use is genuinely limited to your business purpose
• Verify the sub-processor disclosure requirements
• Understand the breach notification timeline and make sure it gives you enough runway to meet your regulatory obligations
• Pay close attention to liability clauses — under GDPR, you can face regulatory action for a processor’s failures even if the DPA assigns fault to them

If You’re the Data Processor

If you’re building a SaaS product or providing services that handle other companies’ customer data, you’ll be signing DPAs as the processor. In that case:

• Make sure you can operationally meet every security and compliance obligation in the agreement before signing
• Maintain an up-to-date list of your own sub-processors and have their DPAs in order
• Build processes to respond to data subject rights requests within required timeframes
• Standardize your DPA template where possible; managing dozens of bespoke DPAs across different clients is a significant legal operations burden

Is a DPA legally required?

Under GDPR, yes, if you engage a third-party processor to handle personal data on your behalf. Under the amended CCPA, similar contracts are required for service providers, contractors, and third parties. Technically, the document doesn’t have to be called a “DPA,” but a compliant contract covering the required elements is mandatory.

Do I need a DPA for Google Analytics?

Yes. Google Analytics processes personal data (IP addresses, browsing behavior, device identifiers) on your behalf. Google provides a Data Processing Amendment within its terms that you can sign as the controller. If you’re serving EU users, this is not optional.

Does a DPA expire?

The DPA is typically tied to the underlying service agreement. It remains in effect as long as the processing relationship exists. When the contract ends, the DPA should require the processor to delete or return all personal data. Some DPAs include a periodic review clause that requires both parties to revisit terms annually.

What’s the difference between a DPA and a Data Sharing Agreement?

A DPA governs a controller-processor relationship where one party processes data on behalf of the other. A data sharing agreement governs a controller-controller relationship where two independent businesses exchange data. The distinction matters because the GDPR treats these relationships differently in terms of obligations and liability.

What happens if I don’t have a DPA?

Under GDPR, operating without a DPA when one is required is itself a violation, separate from any breach. The ICO (UK) and EU supervisory authorities have fined organizations specifically for the absence of DPAs. Beyond regulatory fines, you lose the contractual protections a DPA provides if something goes wrong with a processor.

A Data Processing Agreement (DPA) is not just a legal requirement—it’s an essential tool for safeguarding personal data and ensuring your business operates within the boundaries of data protection laws. With privacy regulations tightening worldwide, businesses must take proactive steps to protect their customers’ information.

A well-structured DPA clarifies roles, enforces security standards, and minimizes risk, helping you build trust with your customers while staying compliant.

We hope this article has helped you learn about data processing agreements. If you have any doubts, drop them in the comments section.

Disclaimer: This article was intended for informational purposes only and does not represent legal advice. We have no intention of obtaining any kind of attorney-client relationship. If you are looking for legal advice, we recommend you contact a professional.