Electronic quote signatures: how your customers approve repairs from their phone
No more jobs started without written approval: the customer signs the quote from their phone in 30 seconds and your shop gets the confirmation instantly.
The problem: work started without written approval
Almost every repair shop has lived through the same scene. You call the customer, give them the price over the phone, they say "yes, go ahead", and the technician gets to work. Two days later, when the invoice lands, comes the sentence every shop manager has heard: "I never authorised that."
A verbal quote leaves no trace. A paper quote does leave a trace, but it forces the customer to drive down to the shop to sign it — which means hours or days of a vehicle sitting still, a lift tied up and parts reserved that you cannot invoice yet.
Electronic signatures close exactly that gap: written approval, on the spot, without the customer having to go anywhere.
How it works from the shop's side
The flow is designed not to add a single step to the work you already do:
- You build the quote as usual, with its labour and parts lines.
- You send it to the customer by email, or paste the link into WhatsApp. The link is unique to that quote and expires on its own.
- You get the confirmation the moment they sign: the quote flips to "signed" in your dashboard, with the exact timestamp.
- You convert the quote into a work order and the technician starts knowing there is written approval on file.
If the customer rejects the quote, that is recorded too, so you know why the job fell through and can follow up commercially instead of simply losing it.
And if the customer doesn't sign, can I start anyway?
You can: the shop manager can override the requirement when it's genuinely needed (an emergency, a fleet customer with a standing agreement). But by default the system warns you there is no signature — which is exactly what prevents the "I never authorised that" conversation two weeks later.
What the customer experiences
On their side it's even simpler, and that matters: the less friction, the faster the job gets approved.
- They receive a link and open it on their phone. Nothing to install, no sign-up.
- They see the full quote: parts, labour, tax and total, itemised.
- They tick the acceptance box and sign with their finger on the screen (or with a mouse if they open it on a computer).
- They confirm and see a message telling them the signature has been recorded.
In practice it takes thirty seconds from the moment the message arrives. That immediacy is what gets a quote approved the same day instead of leaving it "waiting to be looked at".
What evidence is stored (and why it protects you)
Signing on a screen is worthless if you can't later prove who signed, when, and what. That's why, alongside the signature image, the system automatically stores:
- The exact date and time of the signature.
- The IP address it was signed from.
- The device and browser used.
- A hash of the document — effectively a fingerprint of its content: if anyone changed a single figure in the quote, the fingerprint would no longer match.
This is what's known as a simple electronic signature, and it is perfectly valid for evidencing a customer's consent to a repair. It doesn't replace a qualified digital certificate (which isn't needed here at all), but it does turn a verbal "yes" into proof with a date, a content record and an audit trail.
The link is invalidated if you touch the quote
A detail that usually goes unnoticed and is critical: if you add a part or change an amount after sending the quote, the signing link stops working and has to be resent. That makes it impossible for the customer to sign one version while the shop works from another.
What the shop gains day to day
Beyond the legal side, the practical effect shows up in three places:
- Less vehicle downtime. Approval arrives in minutes, not whenever the customer can drop by.
- Fewer arguments at invoicing time. What was signed is exactly what gets invoiced, and it's on file.
- Less paperwork. No printing, scanning and filing: the signed quote and its signature stay attached to the vehicle and the customer, and appear in the PDF.
If you also want more of your quotes approved, it's worth reviewing how to write a repair quote customers approve first time: signing removes friction, but the content is still what convinces them.
Available on every plan
Electronic quote signing isn't a perk reserved for a top-tier plan: it's included in every TallerIA plan, because a small shop needs it as much as a large one — if not more. You can see the details on the pricing page or take a look at everything the platform includes.
If you're coming from another program, our comparisons with other shop management software show what each one offers in this area.
Frequently asked questions
Is an electronic quote signature legally valid?
Yes. It is a simple electronic signature: alongside the signature itself, the system stores the date and time, the IP address, the browser used and a hash of the signed document, so you can prove exactly what content the customer accepted and when.
Does the customer need to install anything or create an account?
No. They receive a unique link by email or WhatsApp, open the quote in their phone browser, sign with a finger and they're done. No app, no account, no password.
What happens if I change the quote after sending it?
The signing link is invalidated automatically whenever lines or amounts change. That way the customer can never sign a version different from the one your shop is working with.
Is it included in every plan?
Yes, electronic quote signing is included in every TallerIA plan, from Starter up to Enterprise.