ProOne Launches 'Electronic Signature Option' Integrating Document Creation — from Estimates, Orders, and Invoices — with Internal Approval and E-Signatures

ProOne, a field operations SaaS provided by Mitsumoa Co., Ltd. (headquartered in Chuo-ku, Tokyo; Representative Director: Ayako Ishikawa), has launched its "Electronic Signature Option," which integrates document creation for estimates, orders, invoices, and other forms with internal approval workflows and counterparty agreement processes (electronic signatures) into a single platform. By consolidating document operations, approvals, and signatures — which were previously scattered across paper and multiple tools — entirely within ProOne, the solution helps reduce the burden of manual data re-entry, rework, approval wait times, and document collection delays, supporting faster and more reliable business operations.

What's Being Offered

End-to-End Flow from Document Creation → Approval → Electronic Signature, All Within ProOne

With ProOne's "Electronic Signature Option," users can create documents linked to project information, route them directly through an internal approval workflow, and then send the approved documents to counterparties as electronic signature requests. Signatures are supported on both web and mobile, and the entire agreement process is recorded as an audit trail.

Key Features

1) Supports Standard and Custom Document Formats

Supported documents: Estimates / Purchase Orders / Invoices / Custom Documents. Company-specific formats (such as contracts) can also be used as custom documents.

2) Seamlessly Connects Internal Approval Through to Counterparty Agreement

After document creation, the entire flow from internal approval → electronic signature request is handled within ProOne. Rejection and revision are supported, enabling progress management tailored to your workflow.

3) Web/Mobile Support — Signing Initiated via Email Authentication

Signing works on both web and mobile. Initial identity verification is handled via email address authentication (initiated from the signature request email).

4) Trackable Audit Trail — Who Agreed to What, and When

The agreement process is recorded in a traceable format, reducing the burden of document exchanges and follow-up confirmations.

5) Third-Party Softw...