{
  "id": "BRD-178",
  "slug": "brd-178",
  "title": "Brand contact details must be unique across brands",
  "statement": "Each brand must have its own contact address, email and phone; reusing them across brands is a policy violation.",
  "rationale": "Shared contact details across many brands is the signature of a reseller registering client traffic under its own details, which is the pattern the brand-per-EIN and consent-transfer rules exist to stop. Providers treat it as a violation serious enough to trigger deactivation rather than a mere rejection.",
  "layer": "BRAND",
  "layerSlug": "brand",
  "object": "brand.email + brand.phone + brand.street",
  "severity": "HIGH",
  "detectability": [
    "DETERMINISTIC"
  ],
  "failureClass": "RETRY_FIELD",
  "authorities": [
    "TCR",
    "Twilio",
    "Bandwidth"
  ],
  "applicability": {
    "excludeEntityTypes": [
      "SOLE_PROPRIETOR"
    ]
  },
  "applicabilityText": "Applies when the brand is NOT a sole proprietor.",
  "universal": false,
  "remediation": "Use the client's own address, email and phone for each brand. If you are an agency, your details belong on the CSP record, never on the brand.",
  "example": "Brand contact: jane.doe@acmecoffee.com — not agency@northstarmarketing.com reused across ten brands.",
  "notes": "Detectable only against other brands in the same tenant, so it is surfaced as guidance until multi-brand state exists.",
  "phase": "approval",
  "automated": true,
  "url": "https://ekas.io/rules/10dlc/brand/brd-178/",
  "markdown": "https://ekas.io/rules/10dlc/brand/brd-178.md",
  "registry": "https://ekas.io/rules/10dlc/",
  "updated": "2026-07-25",
  "licence": "CC BY 4.0 — https://creativecommons.org/licenses/by/4.0/"
}