WP overnight PDF invoice due date adjustment

To change the invoice due date based on different customer roles in WooCommerce PDF Invoices & Packing Slips, you can use custom code snippets. The plugin allows for customization via hooks and filters.

Method 1: Using a Custom Function (PHP Snippet)

You can add a custom function to your theme’s functions.php file or a custom plugin to modify the due date dynamically based on user roles.

Example Code:

/**
 * Change invoice due date based on customer role.
 */
add_filter( 'wpo_wcpdf_invoice_title', 'custom_invoice_due_date_by_role', 10, 2 );
function custom_invoice_due_date_by_role( $title, $document ) {
    if ( ! is_object( $document ) || ! isset( $document->order ) ) {
        return $title;
    }

    $order = $document->order;
    $user_id = $order->get_user_id();

    if ( $user_id ) {
        $user = get_user_by( 'id', $user_id );
        $due_date = '';

        // Set due dates based on user role
        if ( in_array( 'wholesale_customer', $user->roles ) ) {
            $due_date = 'Net 30'; // Wholesale customers get 30 days
        } elseif ( in_array( 'subscriber', $user->roles ) ) {
            $due_date = 'Due on Receipt'; // Subscribers pay immediately
        } else {
            $due_date = 'Net 15'; // Default due date for other roles
        }

        // Append due date to the invoice title
        $title .= ' - ' . $due_date;
    }

    return $title;
}

Explanation:

• This code checks the user role associated with the order.
• Depending on the role (wholesale_customer, subscriber, etc.), it sets a different due date.
• The due date is appended to the invoice title.

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Method 2: Using a Plugin Extension (Advanced)

If you need more complex due date rules (e.g., dynamic dates based on order date), you can extend the plugin further:

/**
 * Set dynamic due date (e.g., 15 days from order date for wholesale customers).
 */
add_filter( 'wpo_wcpdf_after_order_data', 'custom_dynamic_due_date', 10, 2 );
function custom_dynamic_due_date( $document_type, $order ) {
    $user_id = $order->get_user_id();

    if ( $user_id ) {
        $user = get_user_by( 'id', $user_id );

        if ( in_array( 'wholesale_customer', $user->roles ) ) {
            $order_date = $order->get_date_created();
            $due_date = $order_date->modify( '+15 days' )->format( 'Y-m-d' );

            echo '<p><strong>Due Date:</strong> ' . $due_date . '</p>';
        }
    }
}

Where to Add the Code?

• Option 1: Add to your child theme’s functions.php.
• Option 2: Use a code snippets plugin (like “Code Snippets”).
• Option 3: Create a custom plugin.

Testing

• Place a test order with different user roles.
• Check the PDF invoice to ensure the due date changes correctly.

The WooCommerce PDF Invoices & Packing Slips plugin by WP Overnight does not have a built-in function specifically for adjusting due dates based on customer roles. However, it does provide hooks and filters that allow you to customize invoice details, including dates.

Available Date-Related Features in the Plugin

1. Invoice Date Format

• You can modify the invoice date format via:
  • WooCommerce → PDF Invoices → Documents → Invoice → Date Format
  • Or via code using wpo_wcpdf_date_format filter.
  Example:

   add_filter( 'wpo_wcpdf_date_format', 'custom_invoice_date_format' );
   function custom_invoice_date_format( $format ) {
       return 'F j, Y'; // Changes to "June 26, 2025"
   }

2. Custom Due Date Field

• You can manually add a due date field in the invoice template by:
  • Editing the template file (invoice.php in wp-content/uploads/wpo_wcpdf/templates/).
  • Using a filter to dynamically set it.
  Example (adding a static due date):

   add_action( 'wpo_wcpdf_after_order_data', 'add_custom_due_date', 10, 2 );
   function add_custom_due_date( $document_type, $order ) {
       if ( $document_type == 'invoice' ) {
           echo '<p><strong>Due Date:</strong> ' . date_i18n( 'F j, Y', strtotime( '+15 days' ) ) . '</p>';
       }
   }

3. Dynamic Due Date Based on Order Date

• You can calculate a due date relative to the order date:

   add_action( 'wpo_wcpdf_after_order_data', 'add_dynamic_due_date', 10, 2 );
   function add_dynamic_due_date( $document_type, $order ) {
       if ( $document_type == 'invoice' ) {
           $order_date = $order->get_date_created();
           $due_date = $order_date->modify( '+30 days' )->format( 'Y-m-d' );
           echo '<p><strong>Due Date:</strong> ' . $due_date . '</p>';
       }
   }

No Built-In Role-Based Due Date Adjustment

• The plugin does not natively support setting different due dates per customer role.
• You must use custom PHP code (like in my previous examples) to achieve this.

Alternative Solutions

1. Use a Plugin Extension

• PDF Invoices & Packing Slips Professional (Premium version) offers more customization options.
• Third-party plugins (like WooCommerce Conditional Content) can help show different due dates based on rules.

1. Custom Invoice Template

• Override the default template and add role-based logic directly in invoice.php.

Conclusion

If you need automatic due date adjustments by customer role, you must use custom code (PHP snippets). The plugin itself does not have a built-in feature for this.

Would you like help refining a snippet for your specific needs? 🚀

Example

Here’s a clean and effective PHP snippet to add a 30-day due date for the wholesalecredit customer role in WooCommerce PDF Invoices & Packing Slips:

Solution: Dynamic Due Date for ‘wholesalecredit’ Role

Add this to your child theme’s functions.php or a custom plugin:

/**
 * Add a 30-day due date for 'wholesalecredit' customers in PDF invoices.
 */
add_action( 'wpo_wcpdf_after_order_data', 'add_wholesalecredit_due_date', 10, 2 );
function add_wholesalecredit_due_date( $document_type, $order ) {
    // Only apply to invoices
    if ( $document_type !== 'invoice' ) return;

    // Get user and check role
    $user_id = $order->get_user_id();
    if ( ! $user_id ) return; // Guest orders

    $user = get_user_by( 'id', $user_id );
    if ( ! in_array( 'wholesalecredit', $user->roles ) ) return; // Only for 'wholesalecredit' role

    // Calculate due date (order date + 30 days)
    $order_date = $order->get_date_created();
    $due_date = $order_date->modify( '+30 days' )->format( get_option( 'date_format' ) );

    // Display due date under order details
    echo '<div class="due-date"><strong>Due Date:</strong> ' . $due_date . '</div>';
}

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Key Features:

1. Role-Specific Logic

• Only applies to users with the wholesalecredit role.
• Skips guest orders and other roles.

1. Dynamic Date Calculation

• Takes the order date and adds 30 days using PHP’s DateTime.

1. Proper Date Formatting

• Uses WordPress’s default date format (from Settings → General).

1. Clean Output in Invoice

• Appears under the order data section with clear labeling (Due Date: [date]).

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Alternative: Append Due Date to Invoice Title

If you prefer the due date in the invoice title, use this instead:

add_filter( 'wpo_wcpdf_invoice_title', 'add_due_date_to_invoice_title', 10, 2 );
function add_due_date_to_invoice_title( $title, $document ) {
    if ( ! is_object( $document ) || ! isset( $document->order ) ) return $title;

    $order = $document->order;
    $user_id = $order->get_user_id();
    if ( ! $user_id ) return $title;

    $user = get_user_by( 'id', $user_id );
    if ( ! in_array( 'wholesalecredit', $user->roles ) ) return $title;

    $order_date = $order->get_date_created();
    $due_date = $order_date->modify( '+30 days' )->format( get_option( 'date_format' ) );

    return $title . ' (Due: ' . $due_date . ')';
}

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Where to Place the Code?

• Child Theme: wp-content/themes/your-child-theme/functions.php
• Code Snippets Plugin: Install the Code Snippets plugin for easy management.
• Custom Plugin: Recommended for production sites.

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Testing

1. Place an order as a wholesalecredit user.
2. Generate the PDF invoice and verify the Due Date appears correctly.

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Need Adjustments?

• Change the role? Replace 'wholesalecredit' with your desired role (e.g., 'wholesale').
• Different due period? Modify +30 days (e.g., '+15 days').
• Styling the output? Add CSS via the plugin’s template files.

Let me know if you’d like help tweaking this further! 🚀