Change Status of Invoice after WooCommerce Payment Status Update

functions.php

<?php // don't include this line in your functions.php, since it already starts with it.


// remove action within SI add-on
remove_action( 'si_invoice_status_updated', array( 'Woo_Payments_Integration', 'maybe_change_order_status' ), 10, 2 );

// recreate action with processing status
function maybe_change_order_status( SI_Invoice $invoice, $status = '' ) {
	$order_id = get_post_meta( $invoice->get_id(), self::ORDER_ID_META, true );
	if ( ! $order_id ) {
		return;
	}
	$order = wc_get_order( $order_id );
	switch ( $status ) {
		case SI_Invoice::STATUS_PAID:
			$order->update_status( 'processing', __( 'Invoice payment complete', 'sprout-invoices' ) );
			break;
		case SI_Invoice::STATUS_WO:
			$order->update_status( 'cancelled', __( 'Invoice written-off', 'sprout-invoices' ) );
			break;
		default:
			break;
	}
}
add_action( 'si_invoice_status_updated', '_maybe_change_order_status', 10, 2 );

This snippet is a customization for Sprout Invoices. A customizable solution that provides a way for you to get paid via your WordPress site. For more information please don't hesitate to reach out.