# Sync

## Command Description

<figure><img src="https://content.gitbook.com/content/ZSEaukXZvekl0qIsJpTb/blobs/uqv6oJOA2MMR1kcaDJgc/image.png" 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="https://content.gitbook.com/content/ZSEaukXZvekl0qIsJpTb/blobs/3rfCMikQAcvuE5W8aCcq/image.png" 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="https://content.gitbook.com/content/ZSEaukXZvekl0qIsJpTb/blobs/qWNemfvPPpmYxj8peYuF/image.png" 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                                                                      |
| ------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------- |
| ![](https://content.gitbook.com/content/ZSEaukXZvekl0qIsJpTb/blobs/SoZT1HQSZ0S24FoOJuO9/sync-structured_before.png) | ![](https://content.gitbook.com/content/ZSEaukXZvekl0qIsJpTb/blobs/vK610l5j3JlanJhkPcY6/sync-subassy-structured_before.png) | ![](https://content.gitbook.com/content/ZSEaukXZvekl0qIsJpTb/blobs/eP2w8jCpIt43O1w1DfvW/sync-subassy-structured_after.png) |

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.