Create an account with LG Seller Lounge
​https://us.lgaccount.com/login/sign_in (if the link is not available, click on person icon on top-right of https://seller.lgappstv.com/seller/main/Main.lge )
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Select your Country and Region

Review and Accept Terms

Type in your email address and complete registration
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You would receive an email, confirm your account
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Now, sign in to your account - https://us.lgaccount.com/login/sign_in

From the Membership section on the dashboard, select Group, then select Member Info. Scroll down to Invite New Member section,
Invite the email id (eg: apps@ventunotech.com) that your account manager shares with you and click the Invite button,