--- title: Prevent Client Sign-Up with Duplicate Phone Number description: Duplicate phone number Hapana --- [Skip to content](https://support.hapana.com/kb/article/622#main-content) English Show submenu for translations [![email-logo.png](https://support.hapana.com/hs-fs/hubfs/hapana_2022/email_2022/footer%20logo.png?width=300&height=78&name=footer%20logo.png)](https://info.hapana.com/en?hsLang=en) Open main navigation Close main navigation - English Show submenu for translations - [Submit Ticket](https://21gxv.share.hsforms.com/2-8HozJXMSTW8kaFHC32eaw) [Submit Ticket](https://21gxv.share.hsforms.com/2-8HozJXMSTW8kaFHC32eaw) Hapana Help | Find answers here - There are no suggestions because the search field is empty. 1. [Hapana Knowledge Base](https://support.hapana.com/?hsLang=en) 2. [Member Management](https://support.hapana.com/member-management?hsLang=en) 3. [Account Settings](https://support.hapana.com/member-management?hsLang=en#account-settings) # Prevent Client Sign-Up with Duplicate Phone Number ## **Overview** This feature helps you maintain cleaner client records and enforce membership integrity across locations. When enabled, the system prevents a client from signing up or editing a profile using a phone number already linked to an existing client within your corporate entity—even if they use a different email address. This stops clients from bypassing membership limits by creating duplicate profiles. ## **Why it matters:** It’s common for members to try registering again with a different email to access early bird or special offers at another location. This feature blocks that by checking the phone number against all records in your brand. --- ## **Prerequisites** - Admin access to Core - Access to **Account Settings \> Configurations \> Business Profile** --- ### Step 1: Log in to Core - Head to [core.hapana.com](https://core.hapana.com/) and sign in using your admin credentials. --- ### Step 2: Navigate to Business Profile - From the Core, click your **profile initials** in the top-right corner. - Select **Account Settings**.![Article image](https://support.hapana.com/hs-fs/hubfs/Knowledge%20Base%20Import/1759444364195_aa1a8f76_image-20250513153506-34-1.png?width=1541&height=911&name=1759444364195_aa1a8f76_image-20250513153506-34-1.png) - Choose the **Configurations** tab.![Article image](https://support.hapana.com/hs-fs/hubfs/Knowledge%20Base%20Import/1759444365499_463ccba1_image-20250513153540-35-1.png?width=1541&height=911&name=1759444365499_463ccba1_image-20250513153540-35-1.png) - Under **Business Profile**, click **Edit** and look for the option: **Prevent Sign-Up with Duplicate Phone Number**. --- ### Step 3: Toggle Your Desired Setting - Select **Yes** to enable the restriction: - New sign-ups or updates will be blocked if the phone number already exists in the corporate database. - Select **No** to allow clients to reuse the same phone number across multiple profiles.![Article image](https://support.hapana.com/hs-fs/hubfs/Knowledge%20Base%20Import/1759444366950_53cbd435_image-20250513153659-37-1.png?width=1541&height=911&name=1759444366950_53cbd435_image-20250513153659-37-1.png) - Click **Save** to apply changes on the settings.![Article image](https://support.hapana.com/hs-fs/hubfs/Knowledge%20Base%20Import/1759444368501_e031f85a_image-20250513153810-38-1.png?width=1541&height=911&name=1759444368501_e031f85a_image-20250513153810-38-1.png) > Tip: If you're part of a multi-location business and want to avoid membership abuse, we strongly recommend enabling this setting. --- ### What Happens When Enabled When this setting is turned **on**, the duplicate phone number check applies to: - **Client sign-ups** through the app, kiosk, and website widgets - **Profile edits** via the app, kiosk, or embedded widgets - **Manual profile creation** by staff in Core If a client attempts to use an existing phone number, they’ll see a message: > “Phone number already in use” The profile creation or update will be blocked until a unique phone number is entered. --- ## **Expected Outcome** Once enabled, clients will be unable to register or update their profiles using a phone number already in your system, reducing duplicate accounts and membership fraud. --- ## **Frequently Asked Questions** **Q: Does this apply across all locations in a brand?** Yes, the phone number check is enforced across all client records within your corporate entity. **Q: What if a client accidentally uses a family member’s phone number?** They’ll be prompted to enter a different number or update the original profile. Staff can assist by updating the original record if needed. **Q: Will existing records be affected?** No. This rule applies to new sign-ups and profile updates only. --- **Need Help?** Reach out to our support team via [support@hapana.com](mailto:support@hapana.com). - [Member Management](https://support.hapana.com/member-management?hsLang=en#main-content) - [Account Settings](https://support.hapana.com/member-management?hsLang=en#account-settings) - [Client Accounts](https://support.hapana.com/member-management?hsLang=en#client-accounts) - [Edit Profile](https://support.hapana.com/member-management?hsLang=en#edit-profile) - [Retail Configurations](https://support.hapana.com/member-management?hsLang=en#retail-configurations) - [Other](https://support.hapana.com/member-management?hsLang=en#other) - [Schedule](https://support.hapana.com/member-management?hsLang=en#schedule) - [Client Page](https://support.hapana.com/member-management?hsLang=en#client-page) - [General](https://support.hapana.com/member-management?hsLang=en#general) - [Reporting](https://support.hapana.com/member-management?hsLang=en#reporting) - [Retail Dashboard](https://support.hapana.com/member-management?hsLang=en#retail-dashboard) - [Team Settings](https://support.hapana.com/member-management?hsLang=en#team-settings) - [Hapana Member Access Control (MAC) Doors](https://support.hapana.com/member-management?hsLang=en#hapana-member-access-control-mac-doors) - [Cash Drawer](https://support.hapana.com/member-management?hsLang=en#cash-drawer) - [Marketing Solutions](https://support.hapana.com/marketing-solutions?hsLang=en#main-content) - [App](https://support.hapana.com/marketing-solutions?hsLang=en#app) - [Contacts](https://support.hapana.com/marketing-solutions?hsLang=en#contacts) - [Marketing](https://support.hapana.com/marketing-solutions?hsLang=en#marketing) - [Conversations](https://support.hapana.com/marketing-solutions?hsLang=en#conversations) - [Settings](https://support.hapana.com/marketing-solutions?hsLang=en#settings) - [Automations](https://support.hapana.com/marketing-solutions?hsLang=en#automations) - [Branded Solutions](https://support.hapana.com/branded-solutions?hsLang=en#main-content) - [Branded App](https://support.hapana.com/branded-solutions?hsLang=en#branded-app) - [Branded Kiosk](https://support.hapana.com/branded-solutions?hsLang=en#branded-kiosk) - [Hapana Hub](https://support.hapana.com/hapana-hub?hsLang=en) - [Website Embed Widgets](https://support.hapana.com/website-embed-widgets?hsLang=en) - [About us](https://hapana.com/about-us/) - [Careers](https://hapana.com/careers/) - [Contact us](https://hapana.com/contact-us/) - [Privacy policy](https://hapana.com/privacy-policy/) - [Terms & conditions](https://hapana.com/terms-and-conditions/) [![email-logo.png](https://support.hapana.com/hs-fs/hubfs/hapana_2022/email_2022/footer%20logo.png?width=300&height=78&name=footer%20logo.png "email-logo.png")](http://hapana.com?hsLang=en) Copyright © 2025, Hapana