# Triom > Triom (formerly Order Merger) is a Shopify app that adds three post-checkout surfaces to a store with a single install: self-serve customer order editing, checkout and post-purchase upsells, and automatic order merging that consolidates duplicate shipments before fulfillment to save on shipping. Trusted by 2,000+ Shopify merchants. Triom is "Built for Shopify" certified. Pricing starts free (pay-as-you-go) and scales by monthly merge/edit volume up to $149.99/month. Every plan includes order editing, automatic and manual merging, and customer notifications. ## Core pages - [Home](https://www.ordermerger.com/): Overview of order editing, upsells, and order merging in one Shopify app. - [How order merging works](https://www.ordermerger.com/how-it-works/order-merging): Automatic merge, manual merge, merge suggestions, and overnight automatic bulk merge — all on one set of conflict-handling rules. - [How order editing works](https://www.ordermerger.com/how-it-works/order-editing): Self-serve customer edits, configurable allowed actions, Thank You page upsells, and in-checkout upsells. - [Pricing](https://www.ordermerger.com/pricing): Volume-based plans; start free, only the limits change. - [Blog](https://www.ordermerger.com/blog): Practical guides on order editing, upsells, and order merging for Shopify stores. ## Resources - [Shopify App Store listing](https://apps.shopify.com/order-merger): Reviews, ratings, and install. - [Help Center](https://help.ordermerger.com): Product documentation and support. - [Contact](https://www.ordermerger.com/contact): Get in touch with the team. ## Company - Name: Triom (alternate name: Order Merger) - Operated by: Triom Ltd. - Contact: care@ordermerger.com