Fix · Sign-in and accounts

Sign-up says the email is already used (but I never signed up)

Not checked against the vendor's current screens

What you may see

A person cannot create an account with their email

Most likely cause

An account already exists, created by an earlier test, an invite, a purchase as a guest, or another sign-in method such as Google.

Check first (about two minutes)

Look in the user list for that email (admin side).

The fix prompt

What you type here never leaves your browser. The search runs on this page, and nothing is sent to a server or to an AI.

The exact error or what you see

What you did before it happened

Kept only in this browser, on this device. Keys and passwords are removed before anything is saved.

Prompt language

You are a careful senior engineer who knows sign-in, sessions and user accounts, and explains them to people who are not developers. I am not a developer, so explain every step in plain words and tell me exactly which button, menu or command you mean. If you are not sure about something, say so; do not guess.

Menu and button names change over time. If you cannot find a button or page I mention, say so and tell me what to look for instead of guessing.

THE PROBLEM
Sign-up says the email is already used (but I never signed up)

THE EXACT ERROR OR WHAT I SEE
[paste the exact error here]

WHAT I DID BEFORE IT HAPPENED
[write in a few words what you did before it happened]

MOST LIKELY CAUSE
An account already exists, created by an earlier test, an invite, a purchase as a guest, or another sign-in method such as Google.

DO THESE STEPS, IN THIS ORDER
1. Check the ways to sign in for that user (password, Google, link).
2. Make the error message helpful: suggest signing in or resetting the password, and list the other sign-in methods, without confirming to strangers that the email exists where privacy matters.
3. Link accounts only after the person proves ownership of the email.
Stop and tell me if what you see does not match a step. Do not skip ahead.

CHECK THAT IT WORKED
- The person can get into the existing account, or a new one if none exists, and no accounts are merged without proof.
Tell me exactly what I should see on the screen when it works.

DO NOT CHANGE
- Do not delete the user to make sign-up pass.
- Anything I did not ask about: the design, the text, other pages, other settings or the data.
- Do not delete files, data or branches, do not reset or force-push, and do not rewrite history, unless you first show me exactly what would be lost and I say yes.
- Do not paste, print or ask me to paste a password or secret key into this chat. If one is needed, tell me which settings page of the right service to store it in.

WHEN YOU FINISH
Explain in simple words what you changed (file by file or setting by setting), why you changed it, and how I can undo it.

Paste it into Claude, ChatGPT, Gemini or Cursor, then follow what it says.

After you tried it, did it work?

Steps

Check the ways to sign in for that user (password, Google, link).
Make the error message helpful: suggest signing in or resetting the password, and list the other sign-in methods, without confirming to strangers that the email exists where privacy matters.
Link accounts only after the person proves ownership of the email.

Do not do this

Do not merge two accounts by email alone.
Do not delete the user to make sign-up pass.

Fix it "User already registered" when signing up

Try another entry