Step 1: ShopifyBillingController.php -> shopifyAuthenticate() -> need to put dd for access_token.
Step 2: Enter the Shopify URL and Hit -> Copy the Token
EX URL: http://app.targetbay.localhost/shopify/review/setup?shop=eecb3ope0kyd.myshopify.com
Step 3: Goto Shopify Admin -> Apps -> Targetbay Reviews and Emails app installed -> Click to install the app
Step 4: Refresh the page -> Click Targetbay Reviews and Emails app
Step 5: Credentials populate to the app.targetbay.com -> Copy & update to the Onboarding credentials
Step 6: Need to check Shopify Access Token is same, else Paste the Access Token ( Step: 2) -> Re-Authenticate
Step 7: Create Webhooks for this account.
Webhooks URL: https://app.targetbay.com/account/shopify/webhooks