In PrestaShop, changing the Shop URL (domain or folder) must be done carefully to avoid breaking the store.

Here is the safe step-by-step method:

✅ Method 1: Change Shop URL from Back Office (Recommended)

Step 1: Login to Admin Panel

Go to:
Shop Parameters → Traffic & SEO → Set Shop URL

Step 2: Update These Fields

• Shop domain → example.com
• SSL domain → example.com
• Physical URI → / (or /folder/ if installed in subfolder)

Step 3:

• Click Save
• Clear cache:
  Advanced Parameters → Performance → Clear Cache

✅ Method 2: Change URL Directly in Database (If Admin Not Accessible)

Open phpMyAdmin and go to database.

Find table:

ps_shop_url

(Change ps_ if your prefix is different)

Update:

• domain
• domain_ssl
• physical_uri

Example SQL:

UPDATE ps_shop_url 
SET domain = 'example.com',
    domain_ssl = 'example.com',
    physical_uri = '/'
WHERE id_shop_url = 1;

⚠️ Important After Changing Domain

1️⃣ Update config files (if domain changed)

Edit:

/app/config/parameters.php   (PrestaShop 1.7+)
/config/settings.inc.php     (PrestaShop 1.6)

If needed, update domain manually.

2️⃣ Delete Cache Manually (Very Important)

Delete contents inside:

/var/cache/    (PS 1.7+)
/cache/smarty/compile
/cache/smarty/cache

3️⃣ Regenerate .htaccess

Back Office → Traffic & SEO
Disable Friendly URL → Save
Enable Friendly URL → Save

🚀 If Moving From:

👉 HTTP → HTTPS

• Enable SSL in:
  Shop Parameters → General → Enable SSL
• Force SSL on all pages

🛑 Common Problems