What Is Whitelist Entry Restriction?

The Whitelist Entry Restriction feature limits promotion entry to participants whose email addresses or mobile phone numbers match the information pre-registered in advance during promotion operations.
This feature can be effectively used for promotions that require participation to be limited to eligible individuals who meet predefined conditions, such as employee-only events, membership-exclusive promotions, or targeted campaigns for specific customer groups.

What Is Email & SMS Verification?

The Email & SMS Verification feature verifies participant identity by sending a verification code to the email address or mobile phone number entered by the participant during the promotion process.
By using email- and mobile phone number-based verification codes and identity confirmation procedures, abnormal participation such as false information entry, unauthorized use of another person’s contact information, or use of temporary email accounts can be prevented in advance. This feature can be applied to various promotions that require accurate participant verification, including pre-registration events, prize draws, coupon issuance, and duplicate entry restrictions.

Operational Purpose of Whitelist Entry Restriction and Email & SMS Verification

Both the Whitelist Entry Restriction and Email & SMS Verification features verify eligibility based on participant contact information and are designed to ensure stable operation by allowing only participants who meet predefined conditions. When used together, these features can be effectively applied to the following operational objectives.  

1. Prevention of Fraudulent Participation
   Fraudulent participation types such as unauthorized use of another person’s contact information, use of false or temporary email accounts, and duplicate entries can be blocked in advance through the email and mobile phone number verification code process. Furthermore, by narrowing eligible participants through whitelist-based pre-selection, various operational risks caused by fraudulent participation can be minimized, enabling more stable promotion operations.
    
2. Accurate Data Collection
   By preselecting participants through a whitelist and applying an Email & SMS verification code process, only verified information can be collected.
    
3. Selective Operation for Specific Target Groups
   Participation can be restricted to users whose mobile phone numbers or email addresses match the information pre-registered on the whitelist, and combined with Email & SMS Verification, promotions such as employee-only events, membership-based benefits, or campaigns targeting specific customers can be operated to allow entry only for approved participants.

Combined Use of Whitelist Entry Restriction and Email & SMS Verification

When applied together, the Whitelist Entry Restriction and Email & SMS Verification features allow promotion operations to be expanded into various formats depending on the promotion’s objective and target audience, and are particularly effective for the following types of promotions.

1. Promotions for Internal Teams or Community Members
   When operating promotions intended exclusively for internal teams or community members, participation can be restricted based on pre-registered email addresses and mobile phone numbers using the whitelist feature. By applying Email & SMS Verification together, it is possible to confirm that the entered contact information belongs to the actual member.
    
2. Targeted Promotions for Specific Customer Segments
   When offering differentiated benefits to selected customer segments, such as membership-tier customers, customers with purchase history, or VIP members, the email addresses and mobile phone numbers of eligible customers can be registered in the whitelist to prevent participation by non-targeted users.
    
3. Reservation-Based Events or One-Entry-Per-Person Promotions
   For promotions that require reservations or limit participation to one entry per participant, such as concerts, fan meetings, seat-based events, or experiential programs, the whitelist can be used to register reservation holders or invited guests, clearly defining eligible participants.

Whitelist Entry Restriction Guide

When it is necessary to restrict promotion entry so that only participants whose collected email addresses or mobile phone numbers match pre-registered conditions can participate, navigate to Entry Condition Setting > Whitelist Entry Restriction and switch the whitelist feature to ON. 

Select the participant information type to be registered on the whitelist (Email/Mobile Phone Number/Email + Mobile Phone Number). 

• Depending on the selected participant information type, the collection information items (Email, Mobile Phone Number) are automatically added in Entry Condition Setting > Participant Information. 

Whitelist Entry Restriction: CSV Upload

On the email settings or mobile phone number settings screen, select the CSV option.

Select the Download CSV Sample button at the bottom of the settings screen.

• Enter the email addresses or mobile phone numbers to be registered on the whitelist into the downloaded CSV sample file. 

Select the Upload File button to upload the edited CSV file.

• Promotion entry is allowed only when the mobile phone number or email information registered in the CSV file matches the information entered by the participant.
• If the information does not match, participation is restricted even if other entry conditions are met.

Whitelist Entry Restriction: Direct Input

On the email settings or mobile phone number settings screen, select Direct Input.

Enter the values to be registered in the email/mobile phone number input field.

• When registering by email domain, wildcard entries such as *@company.com can be used.

Select the Register button to add the entered email/mobile phone number values to the whitelist.

Email Verification Guide

From Entry Condition Setting > Participant Information, drag the Email item from the selectable information list on the left to the collection information area on the right.

• If Participant Email Verification is selected as the duplicate entry check method in Entry Condition Setting > Allow Duplicate Entries, the Email item is automatically registered as a required item in the collection information area on the right side of the Participant Information screen.
• The duplicate entry check method in Entry Condition Setting > Allow Duplicate Entries can be configured only when the Only 1 entry allowed during Promotion Period option is selected in the Allow Duplicate Entries screen.

From the Email item dragged to the collection information area on the right side of Entry Condition Setting > Participant Information, select the Email Verification button from the available options (Email Verification, Enter Email Manually).

• Email Verification : A verification code is sent to the email address entered by the promotion participant. Verification is completed by entering the received code.
• Enter Email Manually : The email address entered directly by the promotion participant is collected.

When Entry Condition Setting > Whitelist Entry Restriction is ON, only participants whose email addresses are registered on the whitelist can enter the promotion.

• Participants whose email addresses are not registered on the whitelist will be unable to enter the promotion and will see the message: "This email is not approved."

SMS Verification Guide

From Entry Condition Setting > Participant Information, drag the Mobile Phone Number item from the selectable information list on the left to the collection information area on the right.

• If Participant Mobile SMS Verification is selected as the duplicate entry check method in Entry Condition Setting > Allow Duplicate Entries, the Mobile Phone Number item is automatically registered as a required item in the collection information area on the right side of the Participant Information screen.
• The duplicate entry check method in Entry Condition Setting > Allow Duplicate Entries can be configured only when the Only 1 entry allowed during Promotion Period option is selected in the Allow Duplicate Entries screen.

From the Mobile Phone Number item dragged to the collection information area on the right side of Entry Condition Setting > Participant Information, select the SMS Verification button from the available options (SMS Verification, Enter Mobile Phone Number Manually).

• SMS Verification : A verification code is sent via SMS to the mobile phone number entered by the promotion participant. Verification is completed by entering the received code.
• Enter Mobile Phone Number Manually : The mobile phone number entered directly by the promotion participant is collected.

When Entry Condition Setting > Whitelist Entry Restriction is ON, only participants whose mobile phone numbers are registered on the whitelist can enter the promotion.

• Participants whose mobile phone numbers are not registered on the whitelist will be unable to enter the promotion and will see the message: "This mobile phone number is not approved."