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Data & operational efficiency

We're not confident about our marketing consent records

Our consent flags came across from the old database years ago, and nobody can say who ticked them or what people were told. Before every newsletter someone asks whether we can email non-members, or the named contact at a member firm, and nobody is sure. This guide sets out the UK rules and how to rebuild records you can stand behind.

Recognise the problem

Signs your consent records won’t hold up

  • ✓Ask where a contact’s opt-in came from, and the answer is “it was in the old system”.
  • ✓A tick says yes, but nobody can show the date, the form or the words the person agreed to.
  • ✓Staff aren’t sure whether they can email non-members, event delegates or the main contact at a member firm. So some email everyone, and some email no one.
  • ✓Someone unsubscribes from the newsletter and still gets the events bulletin, because the two lists live in different tools.
  • ✓Invoices and AGM notices go out from the same list as promotions, so one unsubscribe stops both or neither.

Take a trade association that changed databases in 2019, bringing its opt-in column across as a plain yes or no. Now the events team wants to email a conference offer to 600 people from non-member firms who once downloaded a guide. Nobody can say which of them agreed to marketing, or when.

Why this happens

The flag survived each migration; the evidence didn’t

Consent was saved as a tick, not a record

When someone agreed, staff ticked a box. The form, the date and the words the person saw were not kept with it. Yet the ICO expects you to show who consented, when and how.

Migrations carried the flag, not its history

Each move to a new database brought the opt-in column across and left its source behind. Event and email tools kept their own unsubscribe lists, which never reached the main record.

No one owns the rules

Membership assumes member firms can always be emailed, and events assume delegates opted in. Without one written policy and a named owner, each team decides for itself.

What it costs

Uncertainty costs you both ways

  • ✓Staff time goes on second-guessing lists. Every campaign starts with a debate about who may be emailed, and the list is cut by hand.
  • ✓Members lose trust. A member who unsubscribed and still hears from you wonders what else you do with their details.
  • ✓Event and training income suffers. Teams that aren’t sure play safe and email a small list, so fewer people hear about what you sell.
  • ✓The board can’t get a straight answer. Nobody can say how many contacts you may lawfully email, or produce the records a complaint would ask for.

From 5 February 2026, breaching the PECR marketing rules can bring a fine of up to £17.5m or 4% of worldwide turnover. The Data (Use and Access) Act 2025 raised the cap from £500,000. Not every PECR breach carries this higher maximum. Source (DUAA Sch.13) Source (DPA 2018 s.157)

In 2025/26 the ICO issued nuisance-marketing fines totalling £1.445 million. One was against a company that sent over 67 million marketing emails without valid consent. Source

How to improve the situation

Five steps to consent records you can stand behind

Audit where each opt-in came from

Export contacts with their opt-in flag and group them by source: web form, event booking, application or import. Find each source’s form and the dates it was live. Anything you can’t trace goes on a review list.

Record the date, source and wording

For every new opt-in, keep the date, where it came from and the exact words the person agreed to. File each version of each form by date, so wording can be matched later.

Review the consent you imported

A limited company’s addresses, even named staff’s, belong to a corporate subscriber, which PECR lets you email without consent. Sole traders and some partnerships count as individuals and need consent or a valid soft opt-in. Ask anyone you can’t prove again at their next booking or call.

Separate service emails from marketing

Invoices, AGM notices and changes to membership terms are service messages. Newsletters and promotions for events, training and campaigns are marketing. Send them from separate lists, and keep promotions out of service messages.

Make unsubscribing easy, and honour it everywhere

Every marketing email, even to a company address, must say who you are and give a way to opt out. A link to a page that needs no sign-in is simplest. Apply each unsubscribe to every list and tool straight away, then test it with an address you have unsubscribed.

This page is general information about UK rules as at October 2026, not legal advice. For decisions about your own contacts, take advice from a data protection specialist.

How Colossus helps

Opt-in on every contact, and unsubscribes that stick

Colossus keeps an opted-in setting on each contact, leaves unsubscribed contacts out of campaigns and records who changed what.

What it doesHow it worksPlans
An opted-in setting on each contactEvery contact shows “Opted in to marketing emails”, Yes or No. Staff with update rights change it on the Update Contact form.CoreGrowthScaleEnterprise
Campaigns only to opted-in contactsAn organisation setting under Company Admin > CRM E-Mail Template Settings. When it is on, a campaign goes only to contacts marked as opted in.CoreGrowthScaleEnterprise
Configured during implementation
Unsubscribe link and pageCampaign emails link to an unsubscribe page on your own site. Opening the link changes nothing until the recipient presses Unsubscribe; the unsubscribe is then logged against the contact.CoreGrowthScaleEnterprise
Unsubscribed contacts left out automaticallyA contact who has unsubscribed is never sent a campaign, whichever list or group added them. The Audience marks them “(unsubscribed)”, and starting the send says how many were not emailed.CoreGrowthScaleEnterprise
Audit trail on contactsChanges to a contact, including the opted-in setting, are recorded with old and new values, who made them and when. The contact’s audit history lists them.CoreGrowthScaleEnterprise
Opt-in carried across at importThe onboarding contact import reads an “Opted in to marketing emails” column: yes or no, with blank meaning no. Unreadable values are listed by row before anything is written.Part of onboarding
Admin users only

Colossus records whether a contact is opted in and honours unsubscribes in campaigns. Whether consent is valid, and which rule applies, is your organisation’s decision.

Worked example

How a trade association rebuilt its consent records

Illustrative example. The British Association of Loading Bay Engineers is a fictional trade association with about 1,200 member firms and 4,000 contacts. This is a composite scenario, not a customer story.

Its opt-in flags had come from an older database in 2018, with no dates or sources. Many smaller members are sole traders, and non-member delegates shared the newsletter list. The membership manager took ownership of the consent rules.

In the Colossus import, the opt-in column said yes only where a dated form could be traced, and everyone else came in as No. PECR would have allowed email to company addresses without consent, but the board chose one rule for everyone. It switched on opt-in-only campaigns.

Staff now ask unproven contacts again at their next booking or call, and tick the box only with a known source. Before the autumn conference, the send said how many contacts were not emailed, and why. When a member asked why her newsletter had stopped, her audit history showed the change and who made it.

See how Colossus solves this

The British Association of Loading Bay Engineers, a fictional trade association, wants every campaign to go only to contacts marked as opted in, and every unsubscribe to be honoured without anyone remembering to do it.

Organisation
British Association of Loading Bay Engineers (fictional), 1,200 members
Goal
Mark opt-in on each contact, trace who changed it, send campaigns only to opted-in contacts and show how an unsubscribe is honoured
Takes
About 85 seconds, 7 steps
Plan
Core, Growth, Scale and Enterprise plans (sending only to opted-in contacts is configured during implementation)

A walkthrough of real Colossus screens with a fictional organisation and demonstration data. Your own set-up, fields and wording will differ.

The result

Each contact shows whether it is opted in, and every change to that setting is in its audit history. Campaigns go only to opted-in contacts, unsubscribed contacts are left out automatically, and starting a send says how many contacts were not emailed and why.

Expected operational benefits

What to measure

Take a baseline from your current list, then check each quarter. The aim is a rising share of contacts whose consent you can show.

  • Opted-in contacts with a known sourceThe share of opted-in contacts for whom you can show the date, source and wording.Higher is better
  • Contacts still awaiting reviewImported or untraced contacts you have not yet sorted.Lower is better
  • Time to honour an unsubscribe everywhereFrom the request to the last list or tool updated, checked with a test address.Lower is better; the aim is the same day
  • Marketing emails sent after an unsubscribeFound through spot checks, complaints or replies.The aim is none
  • Contacts you can email, by basisOpted-in individuals, soft opt-ins and corporate addresses, counted each quarter.Higher is better, if each one has a source
Questions

Frequently asked questions

Can we email the main contact at a member company without consent?
Under PECR, yes, if the address belongs to a corporate subscriber such as a limited company, and you name yourself and offer an opt-out. Sole traders and some partnerships count as individuals, so they need consent or a soft opt-in. UK GDPR still applies to named staff, who have an absolute right to object to direct marketing.
Can a trade association use the new charity soft opt-in?
Not unless it is a charity. Since 5 February 2026, PECR regulation 22(3A) lets a charity email people who showed interest in, or supported, its charitable purposes. The marketing must further those purposes, the details must be collected on or after that date, and an opt-out offered from collection onwards.
Hasn’t the new law made direct marketing a legitimate interest?
Section 70 of the Data (Use and Access) Act 2025 lists direct marketing as an example of processing that may be a legitimate interest. It is not a “recognised legitimate interest”, so you still have to weigh your interest against the person’s. And PECR still decides whether you may send the email at all.
Can we rely on the consent we imported from our old system?
Only where you can show who agreed, when and how, which is the record the ICO expects. Otherwise, a soft opt-in may apply if you collected the details while selling something, offered an opt-out then and offer one in every email. It covers only similar products and services, and a not-for-profit can’t use it for campaigning or fundraising.
Which Colossus plans include this?
Consent and preference management is in every plan: Core, Growth, Scale and Enterprise. It covers the opted-in setting, the logged unsubscribe and campaigns that leave unsubscribed contacts out. Sending only to opted-in contacts is configured during implementation; the audit trail is on every plan.
  1. legislation.gov.uk, Data (Use and Access) Act 2025, section 114: Use of electronic mail for direct marketing by charities. Inserts PECR regulation 22(3A); in force 5 February 2026 (SI 2026/82). UK statute.
  2. legislation.gov.uk, Data (Use and Access) Act 2025, Schedule 13 (introduced by section 115), with Data Protection Act 2018, section 157 (maximum penalties). In force 5 February 2026. UK statute.
  3. legislation.gov.uk, Data (Use and Access) Act 2025, section 70, which adds direct marketing to UK GDPR Article 6 as an example of a legitimate interest. Remaining provisions in force 5 February 2026. UK statute.
  4. Information Commissioner’s Office, How do we comply with the PECR electronic mail marketing rules?, updated 28 April 2026, accessed 18 October 2026. UK regulator guidance.
  5. Information Commissioner’s Office, Information Commissioner’s Annual Report 2025/26: Objective 1, safeguard and empower people. The regulator’s own figures, UK.
Next step

See where your own systems stand

The Membership Systems Health Check is ten multiple-choice questions about your data, renewals, automation, reporting and member experience. You get your score out of 100 on screen straight away, with no email needed to see it.

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