# [How your business data is used](https://rebilder.com/help/trust/data-wall)

- **Summary:** Your account and store data support your Rebilder service. Review how product separation, shared benchmarks and privacy requests work.

## Your business data

Your store’s data supports your Rebilder service. It is not sold or used for buyer-side negotiation. Shared aggregate benchmarks require at least 25 independent sites.

## Rebilder and Mumm

Mumm is a separate negotiation service. Rebilder account data and Mumm buyer data remain separate under the commitments in our Privacy Policy. A customer can authorize Mumm to send your business a negotiation request.

## Privacy questions

See /legal/privacy for data use, product separation and your choices. Contact privacy@rebilder.com for access, export or deletion requests.