Can a side letter be e-signed?

Yes. Electronic signatures are valid under the ESIGN Act (15 U.S.C. ch. 96) and UETA where adopted when the ESIGN four-prong test is met: intent, consent, attribution, and record retention. Confirm no statutory exception (for example, certain wills or court filings) applies to your transaction.

Is notarization required?

Generally not for private commercial side letters. Notarization or witnesses may be necessary if the side letter must be recorded with a public document or if state corporate formalities require additional attestations. Check state law for recordation or notary rules.

How can I prove authenticity?

Retain the platform audit trail showing signer identity, IP address, timestamps, and delivery logs. For higher assurance, use stronger authentication (KBA or certificate-based digital signatures) and preserve tamper-evident signed files.

What if signer names do not match records?

Mismatched or informal names can raise attribution issues and complicate enforcement. Use exact legal names for individuals and entities, include titles, and consider attaching organizational authorization when entities sign.

Can the side letter be amended later?

Yes. Amendments should be in writing, signed by authorized parties, and dated. Keep prior executed versions with the primary agreement to preserve audit history and show the chain of amendments.

Which e-sign plan fits my volume?

For low-volume needs, entry-level plans can be cost-effective; high-volume programs may benefit from usage-based Site License pricing at $1.50 per signature invite. For bulk send and advanced fields, consider higher tiers such as Business Premium or Enterprise.

Electronic Signature
Templates
Marketing
Marketing Confidential Side Letter

Marketing Confidential Side Letter

This template is fully customizable. Edit the text, fill out the fields, and send it for signature. Give it a try!

Marketing Confidential Side Letter

This Confidential Side Letter (the Side Letter) is entered into as of Effective Date: by and between Brand/Client: and Agency/Creator: .

Recitals

WHEREAS, Brand/Client and Agency/Creator are parties to a separate Marketing Services Agreement titled: (the Main Agreement); and

WHEREAS, the parties desire to set forth certain confidential, supplemental terms governing the Campaign defined below; accordingly, this Side Letter supplements and modifies the Main Agreement as set forth herein.

Party Identification and Contact Details

Brand / Client Legal Name Brand Address Agency / Creator Legal Name Agency Address

Brand Entity Type Corporation LLC Other

Agency Entity Type Corporation LLC Other

Campaign Description

Campaign Name Objectives Target Audience Primary Channels

Deliverables

Deliverable 1 — Description:

Deliverable 2 — Description:

Deliverable 3 — Description (optional):

Compensation and Payment

Total Fee Payment Schedule (milestones, dates, amounts) Expenses

All payments shall be made in accordance with the invoicing procedures in the Main Agreement, and Brand shall pay undisputed invoices within days of receipt.

Usage Rights and Intellectual Property

Subject to full payment of compensation due hereunder, Agency/Creator grants to Brand a worldwide, perpetual, sublicensable, transferable license to use, reproduce, display, distribute, and create derivative works of the Deliverables for the Permitted Uses described in the Main Agreement, except as modified below.

Territory Duration / Term of License Ownership

FTC Disclosure and Compliance

Agency/Creator represents and warrants that all public communications and sponsored content delivered under this Side Letter will include clear and conspicuous disclosures that the content is paid or sponsored, in compliance with applicable advertising disclosure obligations. Brand may require pre-approval of disclosure language for each Deliverable.

Agency/Creator acknowledges obligation to include required disclosure language in all sponsored posts.

Exclusivity

For the duration set forth below, Agency/Creator shall not accept engagements or publish content that is commercially competitive with Brand within the Scope described below unless Brand consents in writing.

Exclusivity Term Scope of Exclusivity Kill Fee (if exclusivity breached)

Termination

This Side Letter may be terminated as specified herein. Except for material breach, termination of the Main Agreement shall not automatically terminate those provisions of this Side Letter that by their nature survive termination.

Notice Period for Termination Effect of Termination on Deliverables and Payments

Confidentiality of Side Letter

The existence and terms of this Side Letter are confidential and shall not be disclosed by either party except to its legal, financial and other professional advisors on a need-to-know basis or as required by law. Any permitted recipient shall be bound to confidentiality obligations substantially similar to those herein. Unauthorized disclosure shall be a material breach entitling the non-breaching party to injunctive relief and damages.

Confidentiality Exceptions (if any)

Representations, Indemnity and Limitation of Liability

Each party represents that it has the authority to enter into this Side Letter, and that performance will not violate applicable laws or third-party rights. Agency/Creator shall indemnify and hold Brand harmless from third-party claims arising from Agency/Creator's content that infringes intellectual property or contains untrue representations. Except for liability for willful misconduct or intentional breach of confidentiality, neither party shall be liable for consequential damages.

Miscellaneous

Governing Law

This Side Letter supplements the Main Agreement. In the event of a conflict between this Side Letter and the Main Agreement, the terms of this Side Letter shall control to the extent of the conflict. This Side Letter may be executed in counterparts and delivered by electronic transmission, each of which shall be deemed an original.

Additional Provisions

Brand/Client:

By:

Date:

Agency/Creator:

By:

Date:

What the Marketing Confidential Side Letter Is

The Marketing Confidential Side Letter is a concise, written agreement used alongside a primary marketing contract to record supplemental confidentiality terms, bespoke promotional permissions, or temporary commercial arrangements. It typically clarifies approvals, exclusivity windows, testimonial or logo usage, reporting obligations, and handling of confidential marketing materials that the parties prefer not to incorporate into the main contract. Because it sits beside the principal agreement, the side letter preserves negotiated details without reopening the core contract while creating legally binding obligations when properly executed and retained with the primary agreement.

Why Parties Use a Marketing Confidential Side Letter

Use a Marketing Confidential Side Letter to record sensitive marketing arrangements that need limited circulation or quick revision without amending the principal contract. It reduces ambiguity about promotional rights, approval workflows, and confidentiality scope while preserving the original agreement’s structure.

Who Typically Prepares and Signs These Letters

Typical users of a Marketing Confidential Side Letter include marketing teams, outside agencies, corporate counsel, and counterparty commercial managers seeking narrow confidentiality terms.

Marketing departments — negotiate promotion details, approve creative usage, and limit public disclosure of campaigns.
Agencies and vendors — accept restricted terms for testimonials, endorsements, and co-marketing deliverables.
Legal and compliance teams — ensure confidentiality language aligns with contracts, privacy, and regulatory requirements.

Assign responsibility for execution, retention, and distribution to a single custodian to reduce misrouting and preserve an audit trail for compliance.

Stepwise Process to Prepare and Execute a Side Letter

Follow these steps to complete and attach a Marketing Confidential Side Letter correctly and maintain enforceability.

01

Draft Letter: Draft terms reflecting agreed marketing confidentiality and limits.
02

Review Legal: Have counsel check enforceability and compliance.
03

Sign and Date: Obtain authorized signatures and MM/DD/YYYY dates.
04

Store with Contract: Attach signed side letter to main agreement record.

Typical Routing and Approval Flow

Typical routing for a Marketing Confidential Side Letter covers creation, approval, signature, and distribution steps to ensure clarity and record integrity.

Prepare Draft: Author prepares terms and fills required fields.
Approvals: Marketing and legal review and approve content.
Execute: Parties sign electronically or on paper.
Distribute Record: Send executed copy to stakeholders and custodian.

Configuring an Online Workflow for Consistent Execution

Configure an online workflow to standardize preparation, approval routing, authentication, and secure storage of side letters.

Field	Configuration
Signer Roles	Marketing, agency, and counsel in sequential order.
Authentication	Email link or SMS code verification.
Document Template	Use side-letter template with conditional fields.
Retention	Store signed PDF in contract repository with audit trail.

Platform Capabilities to Support Side Letter Workflows

Review platform capabilities to securely create, route, and e-sign Marketing Confidential Side Letters with compliance features.

File Formats: PDF, DOCX, and fillable fields supported.
Integrations: Salesforce, Google Workspace, NetSuite integrations.
Authentication: Email, SMS, KBA, SSO options.

Core Elements of a Professional Side Letter

Key elements of a professional Marketing Confidential Side Letter ensure clarity of scope, enforceability, and secure recordkeeping practices across parties and systems.

Scope

Define precisely what marketing activities, assets, or data are covered, and include time limits, territorial reach, and specific excluded items to reduce ambiguity during campaign execution or audit.

Confidentiality Terms

Specify non-disclosure obligations, permitted disclosures, handling instructions, storage obligations, and return or destruction procedures to manage proprietary materials and consumer data.

Approval Process

Describe approval steps for creative, messaging, testimonials, and use of party names or logos, including response times and escalation paths to avoid delays.

Exclusivity

Note any exclusivity windows, category restrictions, or competitive limitations, with clear start and end dates to prevent future disputes.

Consideration

Record any payment, credits, or reciprocal marketing commitments and attach schedules or exhibits that quantify deliverables and timelines.

Recordkeeping

Identify custodian, retention period, audit access, and evidence of execution; require an audit trail for electronic signatures to support enforceability.

Security and Compliance Attributes to Note

Encryption: TLS 1.2/1.3 in transit; AES-256 at rest

Access Controls: Role-based permissions and user provisioning

Audit Trail: Timestamps, IP addresses, action logs

HIPAA Support: BAA available for protected health data

Authentication: Email, SMS, KBA, SSO, 2FA

Certifications: SOC 2 Type II, ISO 27001, PCI DSS

Risks and Consequences of Poorly Prepared Side Letters

Breach Exposure: Disclosure can trigger liability and damages

Unenforceable Terms: Poor formality may void obligations under ESIGN tests

Regulatory Violations: HIPAA or FTC rules may apply to data misuse

Reputational Harm: Unauthorized disclosures damage brand relationships and trust

Contract Conflicts: Inconsistent side letters may conflict with main agreement

Operational Delays: Ambiguous approval processes cause campaign delays

Common Preparation Pitfalls to Avoid

Failing to attach the signed side letter to the main contract leads to retrieval problems and weakens enforcement during disputes or audits.
Using vague confidentiality terms without examples or exclusions creates scope disputes and increases the likelihood of litigation.
Not assigning an owner for record retention and distribution results in inconsistent storage and missed compliance obligations.
Relying on informal email confirmations rather than a signed side letter risks noncompliance with ESIGN's intent and consent requirements.

Pricing and Core Feature Comparison — signNow First

Key pricing and feature criteria for commonly used e-signature providers. Compare starting price, trial availability, bulk send, audit trail, and HIPAA support.

	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	Varies
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No

Frequently Asked Questions and Practical Answers

Frequently asked questions below address execution, e-signature validity, storage, and platform options for Marketing Confidential Side Letters.

Need help? Contact support

Can a side letter be e-signed?
Yes. Electronic signatures are valid under the ESIGN Act (15 U.S.C. ch. 96) and UETA where adopted when the ESIGN four-prong test is met: intent, consent, attribution, and record retention. Confirm no statutory exception (for example, certain wills or court filings) applies to your transaction.
Is notarization required?
Generally not for private commercial side letters. Notarization or witnesses may be necessary if the side letter must be recorded with a public document or if state corporate formalities require additional attestations. Check state law for recordation or notary rules.
How can I prove authenticity?
Retain the platform audit trail showing signer identity, IP address, timestamps, and delivery logs. For higher assurance, use stronger authentication (KBA or certificate-based digital signatures) and preserve tamper-evident signed files.
What if signer names do not match records?
Mismatched or informal names can raise attribution issues and complicate enforcement. Use exact legal names for individuals and entities, include titles, and consider attaching organizational authorization when entities sign.
Can the side letter be amended later?
Yes. Amendments should be in writing, signed by authorized parties, and dated. Keep prior executed versions with the primary agreement to preserve audit history and show the chain of amendments.
Which e-sign plan fits my volume?
For low-volume needs, entry-level plans can be cost-effective; high-volume programs may benefit from usage-based Site License pricing at $1.50 per signature invite. For bulk send and advanced fields, consider higher tiers such as Business Premium or Enterprise.

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