MFA Security Issues

How to Set Up Adobe Sign SMS Two-Factor Authentication in Australia

Algirdas JasaitisAlgirdas Jasaitis Nov 5, 2026 869 views

Question details

The user needs to send documents for client signatures in Australia using SMS-based two-factor authentication via Adobe Sign, but requires clarity on the necessary plan and account type.

How to Set Up Adobe Sign SMS Two-Factor Authentication in Australia
Product
Adobe Sign
Device & OS
not provided
Scenario
Setting up secure, SMS-verified electronic signatures for clients residing in Australia.
Observed behavior
Businesses must navigate Adobe Sign's tiered plans to find out which versions support SMS authentication and how to configure it correctly for regional usage.
Before you start

Ensure you have access to your Adobe Acrobat Sign admin console and determine whether your clients require standard electronic signatures or strictly certificate-based digital signatures.

Solution 1Recommended

Upgrade to a Business or Enterprise Adobe Sign Plan

SMS authentication is an advanced feature that requires upgrading from an individual account to a higher-tier organizational plan.

Individual Adobe Sign plans often lack advanced multi-factor authentication features like SMS and voice verification. To use phone authentication for clients in Australia, you will likely need a Teams, Business, or Enterprise agreement.

1
Review your current subscription

Log in to the Adobe Acrobat Sign portal, navigate to your Account Settings, and review your current active plan.

2
Contact Adobe Support or Sales

Reach out to Adobe Sales to confirm the availability, licensing, and transaction limits for SMS authentication specifically in the Australian region.

3
Upgrade your account

Upgrade your subscription to a Business or Enterprise tier that explicitly supports phone authentication workflows.

Upgrade to a Business or Enterprise Adobe Sign Plan
Transaction Limits: SMS transactions usually consume a pre-purchased volume of authentication credits. Check your enterprise agreement for exact limits.
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Frequently Asked Questions

Can I use SMS authentication on an individual Adobe Sign plan?

No, SMS and voice multi-factor authentication features are generally limited to Adobe Sign Teams, Business, or Enterprise plans.

Does Adobe Sign SMS authentication work with Australian phone numbers?

Yes, Adobe Sign supports SMS delivery to Australian mobile numbers. Make sure you select the correct +61 country code when setting up the recipient's phone authentication.

What is the difference between an electronic signature and a certificate-based digital signature?

A standard electronic signature is a digital representation of your agreement, while a certificate-based digital signature requires a cryptographic certificate from a trusted third-party provider to ensure maximum security, identity verification, and legal authenticity.

Are there additional charges for SMS authentication in Adobe Sign?

Yes, depending on your contract, phone authentication transactions are typically consumed from a pre-purchased pool of credits or may incur additional per-transaction charges.