This Contract May Only Be Modified By A Written Agreement Signed By Both Form
Use a This Contract May Only Be Modified By A Written Agreement Signed By Both template to make your document workflow more streamlined.
What this contract modification form does
This form records that changes to an existing contract must be written and signed by both parties. It prevents informal emails, conversations, or one-sided edits from silently changing agreed obligations. The completed document should identify the underlying agreement, describe each modification precisely, and capture both signatures with dates. Under the federal ESIGN Act, 15 U.S.C. chapter 96, and state electronic-transactions law such as UETA, an electronic record can generally satisfy a writing requirement when intent, consent, attribution, and reliable retention are demonstrated. State contract rules and document exclusions still apply.
Legal standing of written modifications
A written modification signed by both parties creates evidence of mutual intent, agreed terms, and attribution under ESIGN and UETA. Electronic records may be admissible when retained and reproducible. These frameworks exclude wills, codicils, testamentary trusts, certain court orders, and specified family-law documents.
Who uses this modification clause
Procurement teams
Procurement teams use this clause in supplier contracts, service agreements, and statements of work to prevent informal changes from altering price, scope, delivery obligations, or acceptance terms.
Legal and operations
Legal and operations teams use it in NDAs, HR agreements, invoices, and consent forms when both parties need a clear, auditable record of approved changes.
How written modifications work
A modification becomes part of the contract record after both parties review and sign the written amendment.
Upload contract: Upload the signed contract and identify existing amendment fields. Assign signers: Add both parties as signers with the required signing order. Send amendment: Send the proposed written modification for review and signatures. Store evidence: Store the completed amendment with its audit trail and contract record.
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Key features for written amendments
The workflow combines precise amendment drafting, controlled signer routing, and an auditable record for the modified contract.
Field placement
Upload the existing contract and amendment, then place required signer, date, and acknowledgment fields without recreating the document from scratch.
Signer routing
Send the exact amendment version to both contracting parties, using signing order when one party must approve before the other receives it.
Audit trail
Capture signer identity details, timestamps, IP information, and action history in the completion record supporting the written modification.
Version control
Keep the signed amendment separate from the original while linking both records for review, dispute handling, and future contract administration.
Reusable templates
Use templates for recurring amendment language while requiring review of party names, changed terms, effective dates, and referenced sections before sending.
Mobile signing
Allow parties to review and sign from supported desktop or mobile workflows, reducing delays when contract changes require prompt approval.
What the amendment audit trail records
An audit trail connects each signature to the specific written modification, supporting later review of the contract record.
Authenticate signer:
Capture timestamps:
Protect document:
Record actions:
Deliver completion:
Export evidence:
Recommended amendment workflow setup
Configure the signing process to preserve the exact amendment, signer identity, and evidence needed for contract administration.
| Setting | Recommendation |
|---|---|
| Signer authentication method | Email verification with SMS authentication |
| Signature type | Electronic signature with recorded intent |
| Audit trail | Enabled for every amendment |
| Document retention | Apply the underlying contract policy |
| Encryption | TLS 1.2/1.3 and AES-256 |
Best practices for contract modifications
Use precise drafting and a complete signing record so the amendment can be understood without relying on informal communications.
Identify the original agreement precisely
Describe every changed term clearly
Collect both required signatures
Preserve the complete contract record
Privacy and disclosure challenges
Personal information copied from the original contract may appear in the amendment, so limit recipients and confirm that shared copies contain only necessary business data. A signer may approve a draft that lacks the final price, date, or scope language, creating uncertainty about which modification the signatures actually evidence. Unrestricted template access can let an employee alter the amendment language or signer roles without review, weakening internal approval and version control. Consumer-facing amendments may require electronic-record disclosures and consent procedures under 15 U.S.C. §7001(c), including access to paper records and withdrawal instructions.
State rules and document exclusions
State notarization
Wills and codicils
Family-law orders
Real-estate deeds
Amendment workflow feature comparison
The available vendor quick reference verifies signNow capabilities; unverified competitor values are identified rather than estimated.
| signNow | DocuSign | Adobe Acrobat Sign | PandaDoc | |
|---|---|---|---|---|
| Electronic signatures | Yes | Not verified | Not verified | Not verified |
| Audit trail | Yes | Not verified | Not verified | Not verified |
| Contract templates | Yes | Not verified | Not verified | Not verified |
| Mobile signing | Yes | Not verified | Not verified | Not verified |
Key performance indicators that demonstrate SignNow's proven track record.
Troubleshooting written amendments
These answers address signing, evidence, plan, and document-control questions for this contract modification form.
Upload the original contract and amendment as separate, clearly named documents. On the signNow Business plan, place signature and date fields manually or use detected fields, then send the amendment to both parties. The completed file and audit trail preserve which document each signer approved.
A signNow Business subscription is listed at $8 per user per month with annual billing, while Business Premium is $15 and includes bulk send. If repeated amendments exceed the plan’s included signature invites, review current overage terms before sending.
ESIGN and UETA generally recognize electronic signatures when intent, consent, attribution, and record retention are established. signNow provides audit trails and completion records, but the parties must confirm that the transaction is not an excluded document such as a will or court filing.
Use two-factor authentication or SMS authentication when stronger signer attribution is needed. signNow’s compliance materials identify ESIGN and UETA compliance, but authentication settings should match the contract’s risk and any applicable organizational policy.
A signed modification should not overwrite the original agreement. Save the original contract, the signed amendment, and the completion record together. The retention period depends on the underlying transaction and applicable federal or state requirements, not on signNow alone.
signNow supports audit trails, templates, and mobile apps on the Business plan. Advanced signer authentication, integrations, or regulated workflows may require higher plans or add-ons. Confirm the current plan feature before configuring a contract-specific process.
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