How can we help you?

If the Cart2Cart Migration Wizard reports a Shopify Admin Access Validation Error, Shopify rejected the store login or automatic credential creation. Use the checks below, then connect with a manual Admin API token or the Cart2Cart Shopify app.

Common causes

1. Wrong admin email or password (typos, wrong store, expired SSO session).

2. Staff account lacks permission to install apps or create custom apps.

3. Two-factor authentication / SSO requires you to approve access in Shopify before the wizard can continue.

4. Temporary Shopify outage or API rate limits.

5. Store cannot create admin custom apps anymore (Shopify moved new apps toward the Dev Dashboard).

Fix: reconnect without relying on admin password validation

Option A (preferred): In the wizard, authorize Shopify through the Cart2Cart Store Migration app install flow when offered.

Option B: Create or reuse a custom app Admin API access token and paste it into the wizard fields. Full steps: Where can I get Shopify API Password?

If your store can no longer create custom apps under Settings → Apps and sales channels → Develop apps, contact Cart2Cart support for the current connection method for your store.

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