subprocessor.io
Resources

The subprocessor compliance blog

Guides, playbooks, and templates for processors navigating GDPR Article 28.

Guide · 8 min read

GDPR Article 28: subprocessor obligations explained

A plain-language guide to GDPR Article 28 — the eight 28(3) obligations, prior authorisation, controller notification, objection rights, and the records processors must keep.

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Playbook

How to notify controllers of a subprocessor change

Step-by-step process for notifying controllers when your subprocessor list changes — identifying affected customers, notice periods, contacts, and capturing evidence.

12 May 2026 · 6 min read
Template

Subprocessor change notification email template

A ready-to-use notification email template for informing controllers of a subprocessor change — the change, effective date, objection window, and where to find the current list.

4 May 2026 · 4 min read
Guide

How to build a subprocessor list page customers actually trust

Why a static subprocessor list page damages trust in procurement — and what a live, scoped subprocessor list looks like instead.

22 April 2026 · 5 min read
Template

Free GDPR subprocessor list template

A free template for building your GDPR subprocessor list. Covers subprocessor name, processing purpose, data categories, location, transfer mechanism, and date added.

26 May 2026 · 3 min read
Template

Vendor DPA review checklist (template)

The terms to check in a vendor's data processing agreement before you onboard them as a subprocessor.

18 May 2026 · 5 min read
Guide

Subprocessor examples — what counts as a subprocessor?

Common examples of subprocessors in B2B SaaS: cloud infrastructure, email delivery, analytics, payment processors, CRMs, and more — and when a vendor is a processor vs a subprocessor.

28 May 2026 · 6 min read
Guide

What is a data processing agreement (DPA)?

A data processing agreement (DPA) is a contract required by GDPR Article 28 between a controller and processor. Here's what it must include and how to use one.

30 May 2026 · 7 min read