Scope Summary
Concise description of deliverables and boundaries so stakeholders understand what is added, kept, or removed from the original engagement.
Using a structured proposal with a formal extension clause reduces disputes, clarifies expectations, and preserves project timelines and budgets. It creates an auditable record that supports client approvals, procurement, invoicing, and change-control processes.
The document is used by organizations and individuals engaged in project work where scope, schedule, or funding changes are expected.
Signatories vary by organization but usually include the project manager, authorized client approver, and any subcontractor representatives required to accept revised terms.
Concise description of deliverables and boundaries so stakeholders understand what is added, kept, or removed from the original engagement.
New milestone dates, critical path changes, and any interim deliverables with acceptance criteria to avoid timeline disputes.
Detailed cost changes, payment schedule, billing milestones, and whether the extension is fixed-price, time-and-materials, or capped.
Process for future changes, approval thresholds, and who can authorize scope or budget adjustments to limit uncontrolled variations.
Identification of risks introduced by the extension and allocation of responsibilities, including indemnities or limitation of liability clauses.
Clear signature blocks for authorized parties, printed names, titles, and execution dates to evidence consent and attribution.
| Field | Configuration |
|---|---|
| Signature Method | Email link, SMS code, or certified eSignature per transaction needs |
| Authentication | Email verification or two-factor authentication for higher-assurance signers |
| Template | Use a saved template to ensure consistent fields and language |
| Storage | Retain signed PDF and audit trail in secure cloud storage |
Ensure your platform supports required file formats, signer authentication, and integrations before sending the document.
Many organizations integrate eSignature platforms with systems like Salesforce, NetSuite, Microsoft 365, or cloud storage to automate routing, reduce data re-entry, and keep records synchronized.
1–5 business days depending on complexity
3–10 business days for legal, finance, and sponsor approvals
7–30 calendar days customary, state specific for procurement
Date should be explicit and set upon mutual execution
Electronic signatures often reduce execution to under 48 hours
Author finalizes terms and supporting exhibits before circulation.
Legal and finance confirm language and budget changes.
Authorized client representative signs to accept the extension.
Store executed documents and audit trail for compliance and audits.
| Criteria | Proposal & Extension | Contract Amendment |
|---|---|---|
| Primary Use | add/change work | modify existing contract terms |
| Formality | moderate formality | high formality |
| Attachment | often standalone | usually appended to contract |
| Signatories | client and provider | same authorized parties |
| signNow | DocuSign | Adobe Sign | PandaDoc | HelloSign | |
|---|---|---|---|---|---|
| Starting Price | $8/user/mo | $15/user/mo | $14/user/mo | $19/user/mo | $15/user/mo |
| Free Trial | 7-day free trial | Varies by plan | Varies by plan | Varies by plan | Varies by plan |
| Bulk Send | Yes | Yes | Yes | Yes | No |
| Audit Trail | Yes | Yes | Yes | Yes | Yes |
| HIPAA Compliant | Yes | Yes | Yes | No | No |
| Envelope Cap | No envelope cap | 100 envelopes/user/year | Varies by plan | Varies by plan | Varies by plan |
Optica created a standard extension form to capture scope changes and approval dates
A property management firm used an extension to add warranty inspections after initial delivery
The project manager coordinates scope changes, prepares the extension, and confirms technical acceptance criteria. Their signature signals operational approval and readiness to implement the revised schedule.
A client executive or contracting officer with delegated authority must sign to bind the client to budgetary changes and new deadlines; unsigned or improperly authorized acceptances risk nonenforceability.