What Is eSignature for SharePoint? SharePoint Definition and Guide
eSignature for SharePoint is a Microsoft 365 document processing service that lets authorized users send supported Word or PDF documents for electronic signature while the content remains in Microsoft 365. It provides request tracking and an audit trail, supports internal and external signers, and can integrate with Microsoft and approved third-party signature providers.
What eSignature for SharePoint Means in SharePoint
A sender starts a signature request from a supported document in SharePoint, specifies recipients and signature fields, and uses the service's sharing and notification flow. Completed documents are stored back in Microsoft 365, and eSignature activities can be searched in the Microsoft Purview Audit log. Current support includes Microsoft eSignature and integrations with Adobe Acrobat Sign and Docusign for documented scenarios.
The service uses simple electronic signatures under applicable law; it is not automatically suitable for every transaction, jurisdiction, regulated signature, notarization, or identity-assurance requirement. Legal counsel and process owners must decide whether the signature type and evidence satisfy the business use case.
Why It Matters to the Business
Keeping requests and signed documents in Microsoft 365 can reduce manual downloads, email attachments, and fragmented archives. It can also simplify employee adoption for documents already managed in SharePoint. The business case should include transaction cost, turnaround time, completion rate, support, external signer experience, and records handling.
External recipients may receive guest access through Microsoft Entra B2B, which creates identity and sharing implications. Process owners need rules for recipient verification, declined or expired requests, corrected documents, delegated signers, evidence retention, and what constitutes the final record.
What SharePoint Administrators Need to Know
Admins must link eligible pay-as-you-go billing, enable the service in the Microsoft 365 admin center, configure providers where needed, and confirm regional availability. External recipients require the current SharePoint and OneDrive Entra B2B integration and guest-sharing configuration. Use least privilege and test sender, signer, and audit roles.
Test supported file types, Word channels, multiple signers, order, expiry, cancellation, declined requests, external guests, sharing links, sensitivity, retention, audit, and final-document storage. Monitor transaction consumption and provider dependencies. Document how corrected documents create a new request so evidence remains unambiguous.
What to Consider
Confirm legal suitability
Have legal and compliance owners approve the signature type, identity evidence, jurisdiction, retention, and transaction category before rollout.
Govern external signers
Define Entra B2B guest creation, sharing, verification, expiration, privacy, support, and cleanup for external recipients.
Preserve the final record
Store the completed document and audit evidence in the correct library with metadata, retention, permissions, and a clear supersession rule.
Practical Takeaway
Use eSignature only after legal suitability, external-sharing design, final-record handling, billing, and exception workflows have been approved and tested.
How This Shows Up in the Field
Vendor agreement
Procurement sends an approved PDF to an external vendor, tracks completion, stores the signed copy in a restricted contracts library, and retains the audit evidence.
Internal acknowledgment
HR sends a Word policy acknowledgment to employees, monitors incomplete requests, and keeps the completed records under the appropriate retention schedule.
Microsoft eSignature and provider integrations
| Microsoft 365 eSignature | Provides a Microsoft-managed signature request experience for supported Word and PDF documents stored in SharePoint. |
|---|---|
| Adobe Acrobat Sign or Docusign | Third-party provider integrations can initiate supported requests from SharePoint while returning completed documents to Microsoft 365. |
| Power Automate approval | Records a business approval decision but is not automatically an electronic signature with the same legal, identity, and evidence model. |
Related 6SC Services and Proof
Related SharePoint Glossary Terms
Frequently Asked Questions
Is Microsoft 365 eSignature legally valid for every document?
No. Microsoft describes simple electronic signatures under applicable law. Legal and compliance owners must determine suitability for the transaction, jurisdiction, identity assurance, evidence, and regulatory requirements.
Can people outside the organization sign?
Yes, in supported scenarios. External signers use guest access through Microsoft Entra B2B, so SharePoint and OneDrive B2B integration, guest sharing, privacy, support, and cleanup must be configured and governed.
Can SharePoint use Adobe Acrobat Sign or Docusign?
Microsoft documents integrations with Adobe Acrobat Sign and Docusign eSignature for supported PDF request scenarios, with completed documents stored in Microsoft 365. Confirm current licensing and provider setup.
Official Microsoft References
Editorial review date: July 13, 2026. Product status and licensing can change; confirm current Microsoft documentation before implementation.
Put eSignature for SharePoint to work with a clear plan
6SC can help your organization evaluate, design, implement, govern, and support eSignature for SharePoint in a maintainable Microsoft 365 environment.
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