Create Credit Memo
Headers
Request
Optional: Reason for credit memo - max 2000 chars - “Billing error on original invoice”
Optional: Related invoice ID - must exist in invoices - “{{invoice_id}}”
Required: Customer ID - must exist in customers table - “{{customer_id}}”
Optional: Internal notes - max 2000 chars - “Approved by manager”
Optional: Line item notes - max 2000 chars - “Overcharged for labor”
Required: Quantity - numeric min:0.0001 - 1
Optional: Tax amount for this line - numeric min:0 - 4.13
Required: Unit price - numeric min:0 - 50.00
Required: Line item description - max 500 chars - “Credit for overcharge”
Required: Reason code - billing_error|warranty|goodwill|return|price_adjustment|duplicate_charge|service_complaint|other - “billing_error”
Optional: Original invoice line item ID - must exist in invoice_line_items
