If you have not connected any stores to BigSeller:
After signing up with BigSeller, you will be directed to Dashboard Wizard Setup
Select Shopee and Click on Connect Store, input the nickname and click on Connect Store
After that, we will direct you to Marketplaces and you'll be prompted to log in to your account.
If you would like to connect new stores to BigSeller:
Click on Integration, or just go to Dashboard and click on Connect Store, and we will direct you to Integration
Click on Add New Store > Input the store nickname and click on Connect Store
Just follow the methods of Step 2 and Step 3 above