Update a customer by ID.
API Key or Personal Access Token (PAT). When using PAT, include X-Project header.
Customer ID
Customer updated
Internal customer ID
Project ID
Your customer identifier
Customer name
Customer email
Billing cycle start date (ISO 8601). Period boundaries are calculated from this date.
IANA timezone for billing calculations (e.g., America/New_York). Falls back to project default.
Custom metadata
Created timestamp
Updated timestamp