What was said, exactly as it was said. Certified.
A single message tells half the story; the whole conversation tells all of it. With lofirmo, the complete WhatsApp dialogue — your messages and your client's replies — is captured in an evidence report with a sealed date.
- Complete conversation, both directions
- Their everyday WhatsApp
- Evidence report in PDF
The full thread, not a screenshot
A screenshot can be disputed; a report issued by a trusted third party cannot. Every message in the thread is recorded with its author, its content and its exact time.
Both directions
Your messages and your client's replies are certified: acceptances, confirmations and every nuance of the dialogue.
Delivery and read status
The double check is evidence too: delivery and reading of every message are noted in the report with their time.
Sealed timeline
Every message in the thread carries a date and time fixed with a timestamp: the order of what was said is locked down.
Zero friction for your client
Your client uses their everyday WhatsApp. Nothing to install, no sign-up, and no change in how they write to you.
Thread report in PDF
The report reconstructs the complete conversation, message by message, with the cryptographic hash of the whole.
Platform and API
Manage conversations from the panel or integrate them into your systems: template-based openings, replies and status updates via webhook.
When the “yes” arrives on WhatsApp
- Quote acceptanceYour client confirms on WhatsApp and that confirmation is elevated to evidence.
- Appointments and confirmationsReminder, reply and rescheduling: the entire exchange, on the record.
- Incident managementWhat was communicated, what was answered and when, for claims and warranties.
- Instructions and authorizationsWork orders, scope changes and authorizations given in conversation.
- Conversational debt collectionPayment reminders and the debtor's commitments, with their reply on record.
- Support with traceabilityCustomer service where every commitment made must be provable.
You already know how to chat; this is no different
Start the conversation
Write from the platform with your verified business number, using an approved template for the first contact.
Talk as usual
Your client replies from their everyday WhatsApp. Every message in the thread, in both directions, is recorded and sealed.
Download the thread report
Whenever you need it, generate the evidence report with the complete conversation, ready to submit as evidence.
From a disputable screenshot to a sealed report
A screenshot can be fabricated; that is why courts scrutinize them. Here the conversation is recorded by a trusted third party as it happens, and the certificates are sealed by two qualified trust service providers (Mensatek and the FNMT, the Spanish Royal Mint's certification authority).
Common questions about Certified WhatsApp
Does my client have to install or accept anything? +
No. They write and receive messages in their usual WhatsApp app, exactly as with any other contact. Certification happens on our platform, which your company's side of the conversation runs through.
Are their replies certified too? +
Yes, and that is the big difference from certifying a single message: the full thread is recorded in both directions, so an acceptance, a refusal or a commitment from your client becomes part of the evidence.
Which number are the messages sent from? +
From a business WhatsApp number in your name, registered for your account. The first contact starts with approved templates, as the WhatsApp platform requires, and once the client replies the conversation flows naturally.
When is the report generated? +
Messages are recorded and sealed as they happen. You generate the PDF report with the full thread whenever you need it, from the panel or via API, and it will always reflect the conversation exactly as it was recorded.
Your conversations already close deals. Now let them prove it.
Create your free account and we'll help you activate your business WhatsApp number.
Prefer to talk it through? +34 910 606 161 · Monday to Friday