---
title: Group Level (Reconciliation Modifiers) Overview
description: "If no group-level reconciliation modifiers have been specified, a bottom-up approach will be used to reconcile the forecasts. The procedure operates as follows. First, Forecast Pro prepares forecasts for all groups and items. Then, Forecast Pro recomputes the group-level forecasts…"
url: "https://dev.forecastpro.com/documentation/forecast-pro-trac/group-level-reconciliation-modifiers/group-level-reconciliation-modifiers-overview/"
updated: "2024-12-17"
category: Reference / Customizing Your Forecasts / Group Level (Reconciliation Modifiers)
---

# Group Level (Reconciliation Modifiers) Overview

If no group-level reconciliation modifiers have been specified, a bottom-up approach will be used to reconcile the forecasts. The procedure operates as follows.

First, Forecast Pro prepares forecasts for all groups and items.

Then, Forecast Pro recomputes the group-level forecasts by aggregating the constituent forecast (bottom up). The original group level forecasts are replaced, but their confidence limits are retained and proportionately adjusted.

Three group-level modifiers can be used to specify alternative reconciliation approaches or leverage group data structure. These modifiers can only be used on group-level data.