Certified WhatsApp: the whole conversation, raised to evidence
Some agreements don't fit in a single message: they are negotiated, answered, qualified. This service certifies the complete WhatsApp dialogue — what you said, what they replied and the files exchanged —, recorded message by message by the platform and sealed as a whole when you decide to certify it, within the following month. No more debatable screenshots.
- Messages and replies
- Certified files
- 10-year custody
supervised in Spain Double seal
Mensatek + FNMT on every certificate ISO 27001 & ISO 9001
independently audited 10-year custody
at no extra cost Spanish engineering
operating since 1998
You chat as usual; the record like never before
Open the conversation
Message the recipient on WhatsApp from the platform, using your business number. They reply from their everyday WhatsApp.
Every message goes on record
Texts, replies and files from both sides are recorded with their date and time the moment they happen.
Certify the one you need
During the following month you ask for the conversation that matters to be certified: the complete dialogue goes into a certificate sealed by Mensatek and the FNMT, kept for 10 years and verifiable.
Why isn't a screenshot enough?
A screenshot is made by the interested party, can be fabricated with any editor and proves neither the real date nor the integrity of the dialogue: the other side only has to challenge it to complicate your case. Here the conversation is recorded by an impartial third party while it happens, message by message, and sealed when you certify it, so any later alteration would be detectable on verification.
Legal framework
Certified conversations are produced as electronic documents admissible as evidence (eIDAS Regulation and articles 299 and 326 of the Spanish Civil Procedure Act), with the evidence sealed by two qualified trust service providers: Mensatek and the FNMT.
Everything that goes inside the certificate
The two-way dialogue
Not just your messages: also the recipient's replies, in order and with their exact time.
Files exchanged
Quotes, photos, documents: every file is identified by its cryptographic fingerprint (6 credits per MB). Voice messages can be included transcribed.
The time of every message
Each contribution is recorded with its date and time when it happens, and the timestamp of the certification locks down the full chronology of the dialogue.
Delivery and read statuses
The delivery and read events returned by the platform are also recorded in the evidence.
Human or automated handling
Manage the conversations from the dashboard with your team, and combine them with the platform's other channels.
API available
Start conversations from your systems, with events delivered to your webhook, and certify the ones you need.
When the deal is closed in a chat
Acceptances by chat
“Go ahead” stops being a loose phrase: it becomes a certified acceptance.
Negotiations and deposits
Terms agreed over WhatsApp with a complete record of the dialogue.
Changes on the go
Scope changes agreed on site, documented as they happen.
Resolution commitments
What your team promises and what the client accepts, with date and time.
About certified WhatsApp
How much does certifying a conversation cost?
15 credits per conversation (between €0.44 and €0.65 depending on the pack), plus 6 credits per MB of attached files and any extras you request, such as transcribing voice messages. You only pay for the conversations you decide to certify. Details on the pricing page.
Does the recipient need anything special?
No: they chat from their usual WhatsApp, as with any business. Certification happens on our platform.
Are their replies certified too?
Yes, that is the whole point: the complete dialogue from both sides is recorded and, when certified, sealed, including the recipient's replies and any files they send.
How is this different from producing screenshots?
A screenshot is generated by the interested party and is easy to challenge. Here the evidence is recorded by an impartial Trust Service Provider while the conversation happens and sealed when you certify it, with integrity verifiable by third parties.
How long do I have to certify a conversation?
One month. The platform records the conversation as it happens and, during the following month, you can ask for it to be certified: at that point the whole dialogue is sealed. The conversation's files are only kept for that time and, once they are deleted, it can no longer be certified, so don't wait for the claim to arrive. If you need the files kept for longer, contact us for a quote.
Combine it with the rest of the platform
One account, one credit balance and one API for the whole platform.
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View serviceYour WhatsApp agreements, finally backed up
Activate your company's certified channel and stop crossing your fingers over screenshots. We can help: +34 910 606 161.