UpsertCustomerInput

"""Input for creating or updating a customer"""
input UpsertCustomerInput {
  """ID for update; omit for create"""
  id: CustomerID
  """Customer name (required)"""
  name: String!
  """External system reference"""
  externalId: String
  """Primary email address"""
  email: String
  """Primary phone number"""
  phone: String
  """General notes"""
  notes: String
  """Whether the customer is active"""
  isActive: Boolean
  """Credit limit amount (nil = no limit)"""
  creditLimit: Float
  """Currency for credit limit (ISO 4217)"""
  creditCurrency: CurrencyISO
  """Net payment terms in days (0 = prepayment)"""
  paymentTermsDays: Int
  """Place customer on credit hold"""
  isCreditHold: Boolean
  """Reason for credit hold"""
  creditHoldReason: String
  """Default tax code for this customer's documents"""
  defaultTaxCodeId: TaxCodeID
  """Whether the customer is tax exempt"""
  isTaxExempt: Boolean
  """Tax exemption certificate or VAT number"""
  taxExemptReference: String
  """
  Override creation timestamp (ISO8601). Honored only on create — passing on update is rejected.
  """
  createdAt: ISO8601
  """
  Override update timestamp (ISO8601). Honored on create or update; defaults to now.
  """
  updatedAt: ISO8601
}