Transform Your Business with ERPNext

# Sample ERPNext Python Code

import frappe
from frappe import _

def create_sales_invoice(customer, items):
    """
    Create a new Sales Invoice in ERPNext
    
    Args:
        customer (str): Customer ID
        items (list): List of items to invoice
        
    Returns:
        object: Created Sales Invoice document
    """
    try:
        # Create a new Sales Invoice
        invoice = frappe.new_doc("Sales Invoice")
        
        # Set customer and posting date
        invoice.customer = customer
        invoice.posting_date = frappe.utils.today()
        
        # Add items to the invoice
        for item in items:
            invoice.append("items", {
                "item_code": item.get("item_code"),
                "qty": item.get("qty"),
                "rate": item.get("rate")
            })
            
        # Save and submit the invoice
        invoice.insert()
        invoice.submit()
        
        frappe.msgprint(_("Sales Invoice {0} created successfully").format(invoice.name))
        return invoice
        
    except Exception as e:
        frappe.log_error(str(e), "Sales Invoice Creation Failed")
        frappe.throw(_("Could not create Sales Invoice: {0}").format(str(e)))