2. How to create a catalogue ?

Link: https://business.facebook.com/commerce/

Kindly click on above link

Click on Add catalogue and follow the below steps to create a catalogue.

Start creating your catalogue:

Step 1: If this will be your first catalogue, click Get started. Select Create a catalogue and then click Get started.

Step 2: Select + Add catalogue to create a new one.

Step 3: Select the type of inventory that you advertise or sell, then click Next.

Step 4: E-commerce (products) only: Choose how you want to add items to your catalogue

Step 5: Select Upload product info if you plan to add items yourself in Commerce Manager.

Step 6: Enter a name for your catalogue.

Step 7: Click on Create.