# Sync

## Command Description

<figure><img src="/files/VzdgN6rD2kc3Rqe2IOu7" alt=""><figcaption></figcaption></figure>

The Sync command copies the item numbers of the *Structured* BOM view of the current (main) assembly to the *Structured* BOM view of the subassemblies.

{% hint style="info" %}
This command modifies components' item numbers in subassemblies.
{% endhint %}

{% hint style="warning" %}
This command is to be run in the main assembly only.
{% endhint %}

A schematic image of the process is in the image below.

<figure><img src="/files/kWYks98UUlZY371ep0yu" alt=""><figcaption><p>Sync command workflow</p></figcaption></figure>

### Summary of changes to the BOM performed by the command (a comparison matrix)

<figure><img src="/files/eRk5t9qgnhnC6mdtZz2S" alt=""><figcaption><p>The comparison matrix of BOM manipulation tools </p></figcaption></figure>

## Command Location

* Assembly environment (`Be.Smart T4I -> BOM panel`, `Assemble -> Manage panel`).

## Command Settings

This command has no settings.

## Workflow Overview

1. Run the command.

## Description of changes performed by the command

In the *Structured* BOM of the main assembly, components 004, 005, and 006 have item numbers 4, 5, and 6 (after the dot symbol). Item numbers of components 004, 005, and 006 in the structured BOM view in subassembly 010 are 1, 2, and 3.

| Structured main assembly BOM before applying the command | Structured subassembly BOM before applying the command | Structured subassembly BOM after applying the command |
| -------------------------------------------------------- | ------------------------------------------------------ | ----------------------------------------------------- |
| ![](/files/aK5FR7T89GM3VOA7lYOZ)                         | ![](/files/r1X3jGxOY9uuhALhcRNR)                       | ![](/files/WkhJTVi7TaVTr1y7ELnC)                      |

After running the command, structured numbering in the subassembly matches the structured numbering (behind the dot symbol) of the main assembly. The subassembly file is physically modified by the command.


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