GDPR Data Subject Access Requests (DSARs): A Mobile Publisher's Handbook

What a DSAR Actually Is

A Data Subject Access Request (DSAR) is the moment a user exercises the rights the GDPR grants them over their personal data. For a mobile publisher, that “data subject” is one of your players or users, and the request can arrive by email, support ticket, app store review, or in-app form. The trigger is simple: someone wants to know what you hold about them — or wants you to act on it.

Crucially, a DSAR need not mention the GDPR, use the word “DSAR,” or follow any template. A one-line message like “send me my data” or “delete my account” starts the clock just as firmly as a formal legal letter. Treating only formal-looking requests as valid is a fast way to miss a deadline.

The Rights Behind the Request

DSARs bundle several distinct rights, and the same message may invoke more than one. Knowing which is which determines what you actually have to do.

Related rights — objection to processing and restriction — often travel alongside these, especially around ad personalization where a user may withdraw consent rather than delete their account outright.

The Deadlines Are Strict

You must respond without undue delay and within one calendar month of receiving the request. The clock starts the day the request arrives, not the day someone on your team notices it. You may extend by two further months for genuinely complex requests, but only if you tell the user within that first month and explain why.

Responses are normally free. You can charge a reasonable fee or refuse only when a request is manifestly unfounded or excessive, and the burden of proving that sits with you. For most publishers the safe assumption is: free, and inside thirty days. Missing the window is exactly the kind of lapse regulators point to when assessing fines.

Building a Workflow That Scales

The publishers who handle DSARs calmly have turned them into a repeatable process rather than a fire drill. A workable workflow looks like this:

Common Pitfalls

Most failures are operational, not legal. Watch for these:

How a CMP Makes DSARs Manageable

This is where your consent layer earns its keep. A DSAR is far easier to answer when you can instantly show what a user consented to, when, and under which framework. FlexyConsent — a Google-certified CMP supporting IAB TCF 2.3 and Google Consent Mode v2 — stores a timestamped consent record and audit trail for every user. When an access request lands, that record becomes a ready-made part of your response: the purposes accepted, the vendors involved, and the version of the notice shown. When an erasure or objection request arrives, the same record proves you stopped personalized ad signals at the right moment. Pairing that consent history with your data map turns a DSAR from a scramble into a lookup.

This article is general information for publishers and is not legal advice; consult a qualified professional for your specific situation.

Key Takeaways

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