Sidekick: Add Order Notes Field at Checkout

Help me add an order notes field to my Shopify checkout:

Store name: [YOUR STORE NAME]
Business type: [FOOD / APPAREL / GIFTS / CUSTOM PRODUCTS / OTHER]
Common customer requests: [LIST TYPICAL SPECIAL INSTRUCTIONS YOU RECEIVE]
Notes field required or optional: [REQUIRED / OPTIONAL]

Configure the order notes field as follows:


  
    Field placement - Add an “Order notes” or “Special instructions” text area in the checkout flow. Place it after the shipping method selection and before the payment section. Use a label that fits my business, such as “Delivery instructions,” “Special requests,” or “Personalization details.”
  
  
    Placeholder text - Include helpful placeholder text that guides customers. For example: “Any special requests? Delivery instructions, dietary requirements, customization notes…” Tailor the placeholder to my [BUSINESS TYPE].
  
  
    Character limit - Set a maximum of [500 / 1000] characters with a visible counter. This prevents excessively long notes while giving enough space for meaningful instructions.
  
  Structured options - In addition to the free-text field, add common request checkboxes above the text area for frequently asked options:
    
      [COMMON OPTION 1]
      [COMMON OPTION 2]
      [COMMON OPTION 3]
This reduces typing and standardizes common requests.
    
  
  
    Order details integration - Ensure notes appear prominently in the Shopify admin order detail page, on the packing slip, and in the order confirmation email. Highlight notes in the fulfillment workflow so warehouse staff do not miss them.
  
  
    Internal tagging - Automatically tag orders that contain notes with “has-notes” so your team can filter and review them during fulfillment.
  
  Cart page option - Also enable the notes field on the cart page using the standard Shopify cart note feature. Sync it with the checkout field.


Provide the Shopify settings and any code changes required.