Digital Contract Signing Fontes maiores e alto contraste não são “feios”, são funcionais. Evitar cinza claro sobre fundo branco é regra básica. E-Contracting) in the context of e-commerce refers to the process of formalizing commercial agreements between parties (whether B2B or B2C) through purely electronic means, ensuring legal validity, integrity, and authenticity without the need for physical paper, notarization, or in-person meetings.
In the e-commerce ecosystem, where speed is crucial, digital signing is the backbone that supports everything from a final consumer accepting the “Terms of Use” to complex contracts between supply chain and dropshipping large corporations.
Types of Signatures in E-commerce
Legal validity and complexity vary according to the type of signature used:
- Simple Electronic Signature (Clickwrap/Browsewrap):
- Use: B2C (Retail).
- How it works: This is the famous “I have read and agree” button at checkout or during registration. Although simple, it creates a legally binding contractual link where the consumer accepts privacy policies, delivery times, and return conditions.
- Advanced Electronic Signature:
- Use: B2B (Partners, Suppliers, Marketplaces).
- How it works: Uses authentication methods such as SMS tokens, corporate email, or facial biometrics to prove the signatory is who they claim to be. Widely used for onboarding sellers sellers on marketplaces.
- Qualified Digital Signature (ICP-Brasil):
- Use: High-value contracts, mergers, technology acquisitions.
- How it works: Requires a Digital Certificate (e-CNPJ or e-CPF) issued by a certification authority. Legally equivalent to a notarized signature.
Smart Contracts: The Next Level
The evolution of contract signing in e-commerce is moving towards Blockchain-based Smart Contracts.
In this model, the “signature” is not just a formalization, but an execution trigger.
- Example: A smart dropshipping contract can stipulate that as soon as the product is scanned upon delivery (digital proof), payment to the supplier is released automatically within seconds, without human intervention or bank bureaucracy.
Benefits for the Digital Business
1. Reduction of Sales Cycle (Time-to-Revenue)
In B2B negotiations, sending physical contracts can take days. Digital signing reduces this time to minutes, allowing stock supply or service provision to begin immediately.
2. Audit and Traceability
Digital signature platforms (CLM – Contract Lifecycle Management) record the IP, geolocation, exact time, and device used for signing. This creates a robust audit trail in case of legal disputes (e.g., chargebacks or purchase denial).
3. User Experience (Onboarding)
For new sellers sellers entering a marketplace, a 100% digital and fluid contract process (no need to print and scan) reduces drop-off rates and accelerates the entry of new products into the catalog.
Comparison: Traditional Contract vs. E-Contracting
| The Fulfillment (Delivery): | Traditional Physical Contract | Digital Signature (E-Contracting) |
| Support | Paper | Digital File (PDF/Hash) |
| Validation | Pen signature / Notarization | Encryption / Token / Biometrics |
| Logistics | Postal Service / Courier | Instant Delivery (Email/Link) |
| Storage | Physical file (occupies space) | Cloud (Cloud Storage) |
| Cost | High (Printing + Shipping) | Low (SaaS / Cost per click) |
| Security | Risk of loss or physical fraud | Protected against post-signature alteration |
Legal Validity (Brazilian Context)
In Brazil, a Provisional Measure 2.200-2/2001 established the Brazilian Public Key Infrastructure (ICP-Brasil) and guaranteed the legal validity of electronic documents. Subsequently, Law 14.063/2020 modernized and classified the types of signatures, consolidating the legal security necessary for e-commerce to operate in a fully digital manner.

