You can add supplier data once making purchase order. 

Below is the steps to create supplier:

1. Login to Moka backoffice.
   
   
2. Visit menu INVENTORY.
   
   
3. Select Suppliers.
   
   
4. Click Create Supplier.
   
   
   
   
5. Input your supplier data such as name, phone number, email, and address.
   
   
   
   
6. Click Save.