E1806 — Minimum purchase epochs not met

Property	Value
Code	`1806`
Slug	`E1806`
Category	`watchtower` (Watchtower)
CIP	CIP-7

What happened

Minimum purchase epochs not met. This is the receipt’s what text, produced by the host-call result HostError::MinPurchaseNotMet.

Why it happened

The node rejected the operation with E1806 (category watchtower, Watchtower). The receipt’s why field carries the specific cause and context carries structured details, when the emitter attaches any. The normative rule is in CIP-7.

How to fix

Increase target_key_epoch so the purchase covers the stream minimum.

Receipt example

{
  "code": 1806,
  "slug": "E1806",
  "category": "watchtower",
  "what": "minimum purchase epochs not met",
  "fix": "Increase target_key_epoch so the purchase covers the stream minimum.",
  "docs_url": "https://docs.cowboy.inc/errors/E1806"
}

All Error Codes

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