{"message":"QuickBooks Invoice & Sales Receipt PDF API","endpoints":{"/invoice/{order_number}":"Get invoice or sales receipt PDF by order number (searches Invoice first, then Sales Receipt)","/invoice/{order_number}?search_type=docnumber":"Search only by DocNumber","/invoice/{order_number}?search_type=shopify":"Search only by Shopify order ID (Invoice only)","/order/{order_number}":"Get full order details (Invoice or Sales Receipt) including line items and customer info","/customers":"Get all customers with full details from QuickBooks","/customers/{customer_id}":"Get a single customer by QuickBooks customer ID","/customer/sync":"Sync all QuickBooks customers into local JSON database","/inventory/sync":"Sync all QuickBooks inventory items into local JSON database","/inventory/sync/daily":"Sync inventory items updated in the last 2 days directly to database (also syncs purchase orders)","/invoices/sync/daily":"Sync invoices updated in the last 2 days directly to database","/sales-receipts/sync/daily":"Sync sales receipts updated in the last 2 days directly to database","/customer/sync/daily":"Sync customers updated in the last 2 days directly to database","/inventory":"Read inventory items from local JSON database"}}