# 30747: Brand Registration Failure: Address duplicate threshold reached

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when a Sole Proprietor Brand registration uses an address that has already reached the allowed duplicate threshold. Each Sole Proprietor Brand must use a unique address in the connected Starter Customer Profile Bundle.

### Possible causes

* The Starter Customer Profile Bundle linked to the Brand registration contains an address that has already been used for another Sole Proprietor Brand.
* The address attached to the registration failed the duplicate address check for Sole Proprietor onboarding.
* The connected Starter Customer Profile Bundle still points to an older address record that is already associated with a different Sole Proprietor Brand.

### Possible solutions

* Edit the connected Starter Customer Profile Bundle and replace the current address with a different address that is unique for this Sole Proprietor Brand.
* If you register through the API, create a new `customer_profile_address` Supporting Document for the updated address and attach it to the Starter Customer Profile Bundle.
* Submit the updated Starter Customer Profile Bundle for review. After the profile update is accepted, resubmit the Sole Proprietor Brand registration request.
* Confirm that the address you submit for the Sole Proprietor registration is a valid address for this brand and is not being reused from another Sole Proprietor Brand registration.

#### Additional resources

* [Troubleshooting Sole Proprietor Brand Registration Failures](/docs/messaging/compliance/a2p-10dlc/troubleshooting-a2p-brands/troubleshooting-sole-proprietor-brand-registration-failures)
* [New Sole Proprietor A2P 10DLC Registration for ISVs: API Walkthrough](/docs/messaging/compliance/a2p-10dlc/onboarding-isv-api-sole-prop-new)
* [BrandRegistrations resource](/docs/messaging/api/brand-registration-resource)