---
title: 'ECI Horizon + Stack Internal'
url: 'https://www.staging38.commercient.com/product/eci-horizon-stack-internal/'
date: '2026-06-19T10:11:55-04:00'
modified: '2026-06-19T10:11:55-04:00'
author: 'Aaron Torres'
excerpt: 'Commercient SYNC connects ECI Horizon to Stack Internal, giving your team access to ECI Horizon data directly within Stack Internal. No complex coding required.'
featured_image: 'https://www.staging38.commercient.com/wp-content/uploads/2026/06/Commercient-Product-Image.webp'
language: en-US
post_type: product
woocommerce:
  price: '0 USD'
  stock_status: instock
  attributes: { Product: SYNC }
---

Commercient connects ECI Horizon and Stack Internal, aligning project costs, budgets and financial data between the ERP and construction management platform. Both platforms stay current with the same customer, order and financial data when the sync is running.

## What syncs

- Sync ECI Horizon Vendors to Stack Internal
- Export ECI Horizon Purchase Orders to Stack Internal
- Connect ECI Horizon Payments to Stack Internal
- Sync ECI Horizon Credit Notes to Stack Internal
- Update ECI Horizon Customers from Stack Internal Data
- Import Stack Internal Records into ECI Horizon as New Entries

## Why Commercient

### Account and contact management

Keep ECI Horizon Customers and Contacts aligned with Stack Internal account records so all customer-facing teams work from the same data.

### Reporting and data visibility

Sync ECI Horizon transactional data to Stack Internal so teams have the information they need for reporting, planning and operational decisions.

### Credit note and returns management

Connect ECI Horizon Credit Notes and returns data to Stack Internal to keep customer account balances and return records aligned between both systems.

### Purchase order management

Export ECI Horizon Purchase Orders to Stack Internal so procurement and operations teams can manage purchasing from either system with consistent data.

## About ECI Horizon

ECI Horizon is a business management system for lumber and building material dealers, managing inventory, purchasing, sales orders, pricing and financials.

## About Stack Internal

Stack Internal is a construction estimating and pre-construction management platform, managing takeoffs, cost estimates, bid management and project budgets for contractors.

## Frequently asked questions

### Can ECI Horizon Price Lists sync to Stack Internal?

Commercient can sync ECI Horizon Price Lists to Stack Internal when included in scope. Exact pricing sync capabilities depend on how pricing is structured in ECI Horizon and how Stack Internal accepts pricing data.

### Can ECI Horizon Vendors and Purchase Orders sync to Stack Internal?

Commercient can support syncing ECI Horizon Vendors and Purchase Orders to Stack Internal when relevant to the integration workflow. Exact capabilities depend on both systems and the project scope.

### How is the ECI Horizon and Stack Internal integration scoped and implemented?

Commercient scopes each integration based on the customer's ECI Horizon and Stack Internal configuration, the objects to be synced and the required sync direction. Timelines and supported objects are agreed during the scoping process.

### Can ECI Horizon Invoices data sync to Stack Internal?

Yes, Commercient can sync ECI Horizon Invoices data to Stack Internal when included in scope. Exact field mapping, sync frequency and object coverage are configured per project.

### Can new records created in Stack Internal be imported into ECI Horizon?

Commercient can support importing new records created in Stack Internal into ECI Horizon when included in the integration scope. Direction and object coverage depend on project configuration.