Holdline

Holdline

Pricing
$29/month. Free trial available.
Rating
0.0 (0 Reviews)
Developer
Sunkars

Turn out-of-stock items into revenue with oversell protection and clean theme blocks.

Turn out-of-stock products into revenue without the risk of overselling. Holdline enforces pre-order limits natively through Shopify checkout — no fragile scripts, no leftover code. Tag orders instantly for warehouse/3PL fulfillment, and get alerted the moment stock is back so you can end pre-orders in one click. Isolated virtual inventory keeps your real warehouse counts untouched. Built on Online Store 2.0 Theme App Extensions — clean install, clean uninstall.

Turn out-of-stock products into revenue without the risk of overselling. Holdline enforces pre-order limits natively through Shopify checkout — no fragile scripts, no leftover code. Tag orders instantly for warehouse/3PL fulfillment, and get alerted the moment stock is back so you can end pre-orders in one click. Isolated virtual inventory keeps your real warehouse counts untouched. Built on Online Store 2.0 Theme App Extensions — clean install, clean uninstall. more
  • Enforces strict pre-order limits natively through Shopify checkout.
  • Clean OS 2.0 Theme Block that integrates seamlessly with no ghost code.
  • Dual-shield order tagging for seamless warehouse and 3PL fulfillment routing.
  • Detects restocked inventory, switch back to regular sales with 1 click.
  • Keeps pre-order limits in an isolated location, apart from real warehouse stock

Languages

English

Categories

Order management

Notifications and analytics

Pricing

Choose the plan that best fits your business.

Standart Plan

$29 / month

Features

  • Unlimited pre-orders & variants
  • Zero per-order commission fees
  • Zero overselling checkout guard
  • Automated restock detection
  • 14-day free trial included

14-day free trial

All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.

Reviews

Overall rating
0
Counts per rating level
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  • 0% of ratings are 4 stars
  • 0% of ratings are 3 stars
  • 0% of ratings are 2 stars
  • 0% of ratings are 1 stars
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Support

App support provided by Sunkars.

Developer

Sunkars

Izmir, TR-35, TR

Launched

September 21, 2026

Data access

This app needs access to the following data to work on your store. Learn why in the developer's privacy policy .

View customer data:

Device and activity data

  • Device and activity data

    Geolocation, IP address, browser and operating system

View staff and contributor data:

Store owner

  • Store owner

    Name, email address, phone number, physical address

View and edit store data:

Products, orders, Online Store

  • Edit products

    Inventory, products, collections

  • Edit orders

    All order history for the last 60 days, shipping information

  • View Online Store

    Theme

  • Edit other data

    Locations

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