how to get invoice deatils or id by order object ?
$orderObject = Mage::getModel('sales/order')->load($orderId);
Any Method to get
invoice_id from above order object ?
Your code only provides the one invoice which has been created first for this order. But an order may have multiple invoices as Magento is capable of creating multiple partial invoices, then you will have multiple invoice details.
The following code loads all associated invoices:
$orderObject = Mage::getModel('sales/order')->load($orderId); $invoiceCollection = $orderObject->getInvoiceCollection(); foreach($invoiceCollection as $invoice): //var_dump($invoice); $invoiceId = $invoice->getId(); $invoiceIncrementId = $invoice->getIncrementId(); endforeach;