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Do I need explicit consent for every field when collecting customer data?

UUğur E***Expert
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Data entry clerk
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Tourism
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sole proprietorship
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Jun 2023
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214
#1

There's a customer registration form on the site with fields like email, phone, address, and date of birth. Do I need a separate checkbox for each one? Or can I just list them all under one heading?

Do I need explicit consent (opt-in) to send marketing emails? Can I just do opt-out for existing customers, or do I need to get approval upfront?

Can I process information necessary for business operations (name, address, phone) under another legal basis (contract), or is explicit consent still required?

HHande V***New memberCommunity member
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Most Helpful#2

Explicit Consent is mandatory under KVKK Article 6. Rules: 1) For contract execution (e-commerce orders): name, email, address → Legal basis is 'contract' (Article 6/b), NO explicit consent needed. 2) Marketing (newsletter, campaigns): explicit consent REQUIRED (Article 6/a), opt-in (not a pre-checked box, user must actively tick it), 3) Profiling/analytics: explicit consent REQUIRED, 4) Cookies: explicit consent REQUIRED (EPDK Rule). Checkbox structure: Privacy Policy + Information Notice (general), separate checkboxes for marketing (explicit consent for marketing emails), cookies (Google Analytics, ads), third-party (data sharing with Stripe etc.). KVKK Article 9: Special category data (race, religion, politics) requires explicit consent + written and special management. Pre-checked boxes are invalid, user must actively tick. Natural language, understandable, easy to read. Opt-out (unsubscribing from spam later) violates email laws — opt-in (initial approval) is mandatory.

NNuri Y***Expert
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Store Manager
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Leather
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300-person organization
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#3

no explicit consent needed for data required for the contract (name address). but yes for marketing make them tick the checkbox. you need to do opt-in opt-out is illegal. like separate checkbox for analytics and ads too...

SSultan Ö***Expert
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Data entry clerk
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Sports and fitness
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early-stage startup
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#4

KVKK Consent model: 1) Contract performance: Article 6/b — no consent needed, necessary data (name, address, email, phone), 2) Marketing: Article 6/a — explicit consent required, separate checkbox, opt-in (not pre-checked), 3) Analytics: Explicit consent (Article 6/a), Google Analytics tag triggered by consent, 4) Cookies: ePrivacy Directive + KVKK, cookie type classification (functional, analytical, marketing), 5) Third-party sharing: explicit consent when data leaves company control. Consent records: Timestamps, policy version, user ID, checkbox states (traceable). Cookie consent platform: CookieBot, OneTrust integration.

KKader B***Expert
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#5

no upfront aproval needed for contract data (name address phone) just collect whats necessary. but EXPLICIT consent is required for marketing emails make them tick the box. dont mix up opt-in and opt-out — opt-out is spam opt-in is legal... anyway separate checkboxes for analytics and ads too...

RReyhan G***Veteran
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Cleaning services
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250
#6

Consent types under KVKK: 1) Legitimate interest (Article 6/f) — business operations (transaction fulfillment) minimal PII, no consent, 2) Explicit consent (Article 6/a) — processing beyond scope, granular data collection, must be unambiguous, freely given (no coercion), 3) Necessary for contract (Article 6/b) — performance, separate consent unnecessary. Consent flow: 1) Privacy notice display 2) Granular checkboxes (unchecked by default) 3) User checks relevant boxes, 4) Confirmation, 5) Timestamped receipt, 6) Stored for audit. Marketing: EPDK (E-Privacy) + KVKK = double requirement prior explicit consent mandatory.

ZZübeyde K***Member
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Purchasing manager
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Doki · Corporate website · 2026

#7

consent = user saying 'yes i want it' 😂 Needed for marketing, not for business ops. checkboxes in the flow start all unchecked let the user decide, done.

MMert E***MemberCommunity member
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28
#8

timey topic.

BBeyza T***Member
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Doki · Interface design · 2023

#9

My questions are cleared up, thanks. Everyone rushing into when is explicit consent required gets stuck at the same point.

KKübra M***Member
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#10

Let me summarize what's been said so far. Having backups accessible on the same network and with the same identity makes them part of the target.

If you post the result here, it will help others too.

OOkan I***Member
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Front office accounting
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Cosmetics
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260
#11

I'm writing this so you don't make the same mistake. Any unwritten clause becomes a point of disagreement later, as both sides remember it differently.

YYasemin K***ExpertCommunity member
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Mar 2023
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201
#12

The cheap-looking path usually ends up costing more later. The biggest time-waster for us was not knowing who had the final say.

If you have questions, write them; I'll answer as best I can.

YYusuf E***Member
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Gym owner
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workshop
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66
#13

My perspective changed after experiencing that. Your time to detect an issue directly determines its cost.

Trying to do this alone is the most expensive way.

JJale E***Veteran
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cooperative
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292
#14

We need to take it step by step. Everyone rushing into when is explicit consent required gets stuck at the same point.

Proven by experience.

ZZehra U***ExpertCommunity member
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#15

I didn't know that.

NNeslihan A***New member
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#16

The cheap-looking path usually ends up costing more later. Security isn't absolute; it's about making attacks not worth the effort.

That's all, sorry if I went on too long.

BBurcu Y***Member
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boutique agency
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#17

The cheap-looking path usually ends up costing more later. Forgotten test environments are more often the entry point than live systems.

That's all, sorry if I went on too long.

İİlker A***MemberCommunity member
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Feb 2023
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#18

If I understood correctly, you're saying: The harder it is to reverse a decision, the slower you should make it.

That's all, sorry if I went on too long.

YYavuz B***MemberCommunity member
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#19

Id appreciate it if you shared the outcome.

OOnurExpert
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Security developer
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Oct 2023
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196
#20

Let me share what happened to me; it might be useful. Just because everyone does it doesn't mean it's right.

Correct me if I'm wrong.

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