I cannot log in — what should I check?

Troubleshoot login problems including missing OTP codes, expired sessions, and browser issues.

The platform uses a 6-digit one-time code sent by email instead of passwords. If you cannot get in, the issue is usually with the code delivery or your browser session.

I never received the login code

• Check your spam or promotions folder — codes come from no-reply@mail.myonlineseller.com.
• Confirm you typed the email address correctly. Codes are only sent to addresses that have an account.
• Wait 60 seconds and request a new code. Old codes expire after 10 minutes.

The code says "invalid or expired"

Each code can only be used once and is valid for 10 minutes. If you waited too long or already used the code in another tab, request a fresh one.

I am stuck in a redirect loop

Clear your browser cookies for the site and try again in an incognito window. This forces a clean session and resolves most loop issues caused by stale auth tokens.

Still need help?

If this article did not solve your problem, our team is happy to help. Email us at support@myonlineseller.com or visit our Contact page. Include your account email and any relevant order, invoice, or shipment IDs so we can dig in quickly.