Display bundle items nested under bundle in Order Printer packing slips / invoices

This guide shows you how to modify your Shopify Order Printer packing slip / invoice template to display bundle items (products within the bundle) nested under their dummy bundle products.

Prerequisite

Enable “Enable bundle metafields” setting in Bundle Kit > Settings > Bundle Metafields.

Enable “Add bundle items (products within the bundle) to orders” setting in Bundle Kit > Settings > Bundle Order.

Have the “Shopify Order Printer” app installed.

A. Packing Slip

Steps

1. Access Your Packing Slip Template

Go to Shopify admin > Apps > Shopify Order Printer > Templates > Packing slip.

We recommend backing up your packing slip template in case you would like to revert to the original version.

2. Locate the Line Items Section

Find this similar section in your template:


<tbody>
  {% for line_item in order.line_items %}
  <tr>
    <td style="text-align: left;">{{ line_item.quantity }}</td>
    <td style="text-align: left;">{{ line_item.title }}</td>
  </tr>
  {% endfor %}
</tbody>

3. Replace with Bundle-Aware Code

Replace the entire <tbody> section with:


<tbody>
  {% assign nested_quantities = '' %}
  
  {% comment %}First pass: Display bundle products with their nested bundle items{% endcomment %}
  {% for line_item in order.line_items %}
    {% assign bundle_items = line_item.variant.metafields.app--5234301.bundle_items %}
    {% if bundle_items and bundle_items.size > 0 %}
      <tr>
        <td style="text-align: left;">{{ line_item.quantity }}</td>
        <td style="text-align: left;"><strong>{{ line_item.title }}</strong></td>
      </tr>
      
      {% for bundle_item in bundle_items %}
        {% assign nested_quantity = bundle_item.bundle_item_quantity | times: line_item.quantity %}
        <tr>
          <td style="text-align: left; padding-left: 20px;">{{ nested_quantity }}</td>
          <td style="text-align: left; padding-left: 20px; font-style: italic;">
            {% if bundle_item.variant_title == "Default Title" %}{{ bundle_item.product_title }}{% else %}{{ bundle_item.product_title }} - {{ bundle_item.variant_title }}{% endif %}
          </td>
        </tr>
        
        {% comment %}Track nested quantities by variant_id{% endcomment %}
        {% assign variant_key = bundle_item.variant_id | append: ':' %}
        {% assign existing_quantity = 0 %}
        {% assign nested_entries = nested_quantities | split: ',' %}
        {% for nested_entry in nested_entries %}
          {% if nested_entry contains variant_key %}
            {% assign entry_parts = nested_entry | split: ':' %}
            {% assign existing_quantity = entry_parts[1] | plus: 0 %}
            {% assign old_entry = bundle_item.variant_id | append: ':' | append: existing_quantity %}
            {% assign nested_quantities = nested_quantities | remove: old_entry %}
            {% break %}
          {% endif %}
        {% endfor %}
        {% assign new_quantity = existing_quantity | plus: nested_quantity %}
        {% assign new_entry = bundle_item.variant_id | append: ':' | append: new_quantity %}
        {% if nested_quantities == blank %}
          {% assign nested_quantities = new_entry %}
        {% else %}
          {% assign nested_quantities = nested_quantities | append: ',' | append: new_entry %}
        {% endif %}
      {% endfor %}
    {% endif %}
  {% endfor %}
  
  {% comment %}Second pass: Display remaining quantities for each unique variant{% endcomment %}
  {% assign displayed_variants = ',' %}
  {% for line_item in order.line_items %}
    {% assign bundle_items = line_item.variant.metafields.app--5234301.bundle_items %}
    {% unless bundle_items and bundle_items.size > 0 %}
      {% assign variant_check = ',' | append: line_item.variant_id | append: ',' %}
      {% unless displayed_variants contains variant_check %}
        
        {% comment %}Calculate total quantity for this variant{% endcomment %}
        {% assign total_quantity = 0 %}
        {% for all_line_items in order.line_items %}
          {% assign check_bundle = all_line_items.variant.metafields.app--5234301.bundle_items %}
          {% unless check_bundle and check_bundle.size > 0 %}
            {% if all_line_items.variant_id == line_item.variant_id %}
              {% assign total_quantity = total_quantity | plus: all_line_items.quantity %}
            {% endif %}
          {% endunless %}
        {% endfor %}
        
        {% comment %}Get nested quantity for this variant{% endcomment %}
        {% assign nested_quantity = 0 %}
        {% assign variant_key = line_item.variant_id | append: ':' %}
        {% assign nested_entries = nested_quantities | split: ',' %}
        {% for nested_entry in nested_entries %}
          {% if nested_entry contains variant_key %}
            {% assign entry_parts = nested_entry | split: ':' %}
            {% assign nested_quantity = entry_parts[1] | plus: 0 %}
            {% break %}
          {% endif %}
        {% endfor %}
        
        {% assign remaining_quantity = total_quantity | minus: nested_quantity %}
        {% if remaining_quantity > 0 %}
          <tr>
            <td style="text-align: left;">{{ remaining_quantity }}</td>
            <td style="text-align: left;">{{ line_item.title }}</td>
          </tr>
        {% endif %}
        
        {% assign displayed_variants = displayed_variants | append: line_item.variant_id | append: ',' %}
      {% endunless %}
    {% endunless %}
  {% endfor %}
</tbody>

4. Preview and Save

Original version:

Modified version:

B. Invoice