{
  "id": "BRD-086",
  "slug": "brd-086",
  "title": "Sole-proprietor throughput is capped, and the CSP enforces it",
  "statement": "Sole-proprietor traffic is capped at roughly 1,000 messages a day and 15 a minute, enforced at the CSP rather than by the carrier.",
  "rationale": "Because the cap is applied upstream of the carrier, exceeding it does not produce message-level rejections — traffic is throttled or the account is reviewed, which looks like a delivery problem rather than a limit. A business planning a launch send on this tier will not find the ceiling in any error code, only in queue times that get steadily worse.",
  "layer": "BRAND",
  "layerSlug": "brand",
  "object": "sole-proprietor send rate",
  "severity": "HIGH",
  "detectability": [
    "UNDETECTABLE_PRE_SUBMISSION"
  ],
  "failureClass": "TERMINAL_EXTERNAL",
  "authorities": [
    "TCR",
    "T-Mobile",
    "AT&T"
  ],
  "applicability": {
    "entityTypes": [
      "SOLE_PROPRIETOR"
    ]
  },
  "applicabilityText": "Applies when the brand is a sole proprietor.",
  "universal": false,
  "remediation": "Size the programme against roughly 1,000 messages a day and 15 a minute before committing to a schedule. If a single send would exceed it, spread it across days or move to a standard brand — there is no increase available on this tier.",
  "notes": "Send rate is not visible at registration time. The user has to do the arithmetic themselves — list size against the daily cap — and knowing that the CSP applies it means the symptom to watch for is throttling, not rejections.",
  "catalogIds": [
    "OPS-125"
  ],
  "phase": "post",
  "automated": false,
  "attestation": {
    "question": "Does your largest planned send fit inside roughly 1,000 messages a day and 15 a minute?",
    "howToCheck": [
      "Do the arithmetic before committing to a schedule: list size against the daily cap, and burst rate against 15 a minute.",
      "If a single send would exceed it, spread it across days or move to a standard brand. There is no increase available on this tier.",
      "Watch for throttling rather than rejections — the cap is applied at the CSP, upstream of the carrier."
    ],
    "failureLooksLike": "No error code names the ceiling. Queue times get steadily worse, the launch send arrives over two days, and it reads as a delivery problem rather than a limit."
  },
  "url": "https://ekas.io/rules/10dlc/brand/brd-086/",
  "markdown": "https://ekas.io/rules/10dlc/brand/brd-086.md",
  "registry": "https://ekas.io/rules/10dlc/",
  "updated": "2026-07-25",
  "licence": "CC BY 4.0 — https://creativecommons.org/licenses/by/4.0/"
}