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How Multi Login Works

SeamlessChex is unifying all of its products under a single login experience — one page, one sign-in, automatic routing to the right platform.

Please note: starting June 23, 2026, all resources — including documentation, plugins, API references, and portal links — will be updated and reflect the latest information.

What is Multi Login?

Previously, merchants logged in separately at:

With Multi Login, all users sign in from one page: dashboard.seamlesschex.com

The system automatically routes each user to the correct product — or shows a product selector if they have access to more than one.

After sign-in, each platform opens at its own URL: Seamless ACH at dashboard.seamlesschex.com/ach/ and SeamlessChex eCheck at dashboard.seamlesschex.com/echeck/.
Old bookmarks (paynote.seamlesschex.com, portal.seamlesschex.com) redirect automatically.

Paynote is being rebranded to Seamless ACH as part of this transition. Learn what's changing →

How to Sign In

  1. Go to dashboard.seamlesschex.com
  2. Enter your email address and password
  3. Click Sign In
  4. The system checks which products are linked to your account and routes you automatically
✅ Your credentials remain unchanged. No need to create a new account or reset your password.

Login Scenarios

Scenario 1 — Same email on both platforms, same password

Before: You logged in at both paynote.seamlesschex.com and portal.seamlesschex.com using the same email and password.

After Multi Login:

  1. Go to dashboard.seamlesschex.com
  2. Enter your email and password
  3. A product selector screen appears — choose which platform to open:
      • Seamless ACH (formerly Paynote) — opens at dashboard.seamlesschex.com/ach/
      • SeamlessChex eCheck — opens at dashboard.seamlesschex.com/echeck/
  4. You are taken directly to the dashboard of the selected product

Scenario 2 — Different email addresses for each platform

Before: You used email1 on paynote.seamlesschex.com and email2 on portal.seamlesschex.com.

After Multi Login:

  1. Go to dashboard.seamlesschex.com
  2. Enter email1 + password — routed directly to Seamless ACH at dashboard.seamlesschex.com/ach/
  3. Enter email2 + password — routed directly to SeamlessChex eCheck at dashboard.seamlesschex.com/echeck/

No product selector appears — the system detects your account automatically.

Scenario 3 — Access to only one platform

If your account is registered on only one platform, you will be taken directly to that platform's dashboard after sign-in. No additional step is required.

Scenario 4 — First-time login via the new URL

If you previously bookmarked the old login URL (e.g., paynote.seamlesschex.com or portal.seamlesschex.com/#/login), you will be automatically redirected to the new login page. Your bookmarks will continue to work.

API Migration

Action Required
Starting
Jun 23
2026

API endpoints are changing across both platforms.

If you use API integrations, update your configuration before August 23, 2026. Until then, current API URLs will continue to be supported.

You will need to replace the current API URL in all places where it is used:

Custom integrations CRM integrations Direct API usage
Paynote / Seamless ACH
  • Update API URL to
    https://api.seamlesschex.com/ach/v2
  • WordPress plugin — a new version will be released automatically. Update when available.
  • CheckoutJS — update your integration per the documentation. Learn more →
Full Paynote migration guide →
SeamlessChex eCheck
  • Update API URL to
    https://api.seamlesschex.com/echeck/v1
  • WordPress plugin — a new version will be released automatically. Update when available.
  • CheckoutJS — no action required. The library will be updated automatically.
Full eCheck migration guide →

Frequently Asked Questions

Do I need to create a new account?
No. Your existing account, email, password, and API keys remain unchanged.
Will my integrations stop working?
Current API URLs will continue to work until August 23, 2026. Starting June 23, 2026, new API URLs are available — update your integrations before the deadline.
What if I have trouble logging in?
Contact support at ach@seamlesschex.com or call 888-998-2439.
What is Seamless ACH?
Seamless ACH is the new name for Paynote. The product, features, and your account remain exactly the same — only the name and branding are changing. Learn more about the rebranding →
Will my dashboard URL change?
Yes. Starting June 23, 2026, each platform will open at its own URL:

• Seamless ACH (Paynote) → dashboard.seamlesschex.com/ach/
• SeamlessChex eCheck → dashboard.seamlesschex.com/echeck/

Old URLs (paynote.seamlesschex.com and portal.seamlesschex.com) redirect automatically — your existing bookmarks will continue to work.
What do I need to do before August 23, 2026?
If you use API integrations, WordPress plugins, or CheckoutJS — action is required before August 23, 2026. The new API URLs are https://api.seamlesschex.com/ach/v2 (Seamless ACH) and https://api.seamlesschex.com/echeck/v1 (eCheck). → See the full migration checklist

Questions about the rebranding?

→ Read the full Paynote → Seamless ACH guide     → What you need to do: migration checklist