Industries

Manufacturing

Optimize industrial processes with digital signatures that accelerate supplier contracts, purchase orders, quality terms, and technical documentation. Reduce production downtime caused by bureaucracy, eliminate paper from the production line, and gain agility at every operational stage.

Modern industrial production line with clean floors and advanced machinery

The plant's everyday documents

From raw material coming in to product going out: what factories and industrial operations send for signature most.

Supply agreements

Price, minimum volume and delivery window for raw materials, set down in writing. Production only starts depending on a supplier once the terms are signed.

NDAs

The confidentiality agreement is signed before technical drawings, specifications and production volumes reach the other party.

Supplier qualifications

Formalizes the supplier's entry into the purchasing base. Whoever answers for the supplier signs the qualification terms, with date and time on record.

Purchase orders

The order issued by procurement comes back confirmed by the supplier, and the plant keeps a record of who confirmed each condition and when.

Acceptance terms

Equipment installed, service completed: the signed acceptance records that the delivery was checked and clears invoicing without argument later.

Representation agreements

Whoever sells on the plant's behalf signs territory, commission and targets before the first client visit. The termination, when it comes, follows the same path.

Industrial maintenance contracts

Contracted with outside providers, preventive and corrective maintenance reaches the first scheduled stop with scope, frequency and response time already signed.

Warranty terms

The term signed at the equipment's sale fixes duration, coverage and service conditions. When the ticket opens, the agreement is already documented.

A supplier qualification, from the ERP to the certificate of completion

A new supplier joins the base without anyone leaving the system the plant already uses: the flow happens between your ERP and Signater.

  1. The ERP kicks off the qualification

    When a new supplier is registered, your system creates an envelope with NDA and contract through the REST API. Nobody has to open the platform to send it.

  2. The supplier signs through the link

    The person in charge receives the invitation by email, reviews NDA and contract and signs both in the same flow, validating their identity with the code sent to the corporate email.

  3. The webhook returns the status

    Publication, signature and completion arrive as POSTs on your system's endpoint the moment they happen, and the record moves forward in the ERP without manual checking.

  4. The qualification stays documented

    The certificate of completion consolidates who signed, when and with which validations, and the envelope is filed in the account's supplier vault.

How webhooks work is detailed on the feature page.

Identity validated between companies

Factors configured per signer, with no registration or app required from the other party. Every recorded validation enters the envelope's certificate of completion as evidence.

Code by email

The 6-digit code lands in the signer's inbox and must be entered before signing. Between companies, the corporate email already says a lot about who is on the other side.

Sender password

You set a password and hand it to the right contact at the other company through the channel you prefer. The signature only moves forward with the correct password.

The signer's A1 digital certificate

For the contracts that carry the most weight, whoever answers for the company signs with their own ICP-Brasil certificate (.pfx/.p12), and the signature is generated with their private key.

The nine available factors, including selfie with liveness detection and identity validation through PIX, Brazil's instant-payment system, are on the Identity validation page.

See the features up close

What sustains this flow, feature by feature: each card leads to the full page, with how it works in detail.

Frequently asked questions

Does Signater integrate with the ERP we use at the plant?

Yes, with any system through the REST API: your ERP uploads the document, builds the envelope with signers and validations, publishes it and checks the status through HTTP calls. Webhooks make the return trip, delivering every envelope event as a POST on your endpoint, with automatic retries if delivery fails.

We issue a high volume of contracts every month. How does that work in practice?

Turn the recurrent documents into templates: the fixed wording stays ready, typed fields mark what varies and issuing becomes filling out a single-screen form. Through the API, generating from the template and sending happen from your own system, with no manual step. Documents created through the API consume the same plan balance, with no per-call fee.

Does the supplier need to sign the NDA before receiving the contract?

You have two paths. In the most direct one, NDA and contract go in the same envelope and the supplier signs both in the same flow. If the contract can only circulate after the NDA is complete, publish two envelopes: the completion webhook of the first can trigger sending the second through the API. Keep in mind that sequential order inside an envelope defines each signer's turn, not each document's.

Can we test the integration without touching production?

Yes. Vaults and API keys can be created in sandbox mode: test envelopes stay isolated and authentication factors run with test codes. For webhooks, the CLI receives events right on your machine, without publishing a URL, and the env field in the payload shows which environment each event came from.

Is an electronically signed contract with a supplier legally valid?

Yes. Electronic signature laws such as the U.S. ESIGN Act and the EU's eIDAS regulation recognize electronic signatures; in Brazil, contracts between companies can be signed electronically under MP 2,200-2/2001. Signater produces an advanced electronic signature based on a digital certificate, in the PAdES standard. In a dispute, the certificate of completion gathers the evidence of who signed, when and with which validations.

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Digitize your plant with Signater

Take paper out of your contracts with suppliers, sales reps and service providers: create your free account and send the first document today. Or talk to our specialists to see how Signater connects to the systems your operation already uses.