> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.dropboy.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Understanding about 'Assign using selected time window' condtions

.This guide provides a quick overview and understanding about 'Assign using selected time window' condtion you can select during the creation of a tray.
---

**Introduction:**

These conditions determine on which date your order will be assigned according to the 'Time window start' and 'Time window end'. Let's look in detail.

## There are two 'Assign using selected time window' conditions: 'Time window start' and 'Time window end.'

![](https://storage.crisp.chat/users/helpdesk/website/f1031fad712a6800/image_rcudvn.png)

1. **'Time window start:'**

If you select "Time Window start," your tray will always assign the vehicle according to the Time window start date. For example, if a task's Time window start date is October 10, 2023, and the Time window end date is October 12, 2023, it will assign the vehicle on October 10, 2023, as you've selected "Time window start".

![](https://storage.crisp.chat/users/helpdesk/website/f1031fad712a6800/image_mlf6nm.png)

2. **''Time window end:'**

If you select "Time Window end," your tray will always assign the vehicle according to the Time window end date. For example, if a task's Time window start date is October 10, 2023, and the Time window end date is October 12, 2023, it will assign the vehicle on October 12, 2023, as you've selected "Time window end".

![](https://storage.crisp.chat/users/helpdesk/website/f1031fad712a6800/image_3tj264.png)

| **Related Articles:**
| [Understanding about 'assignment time' condtions](/en/article/understanding-about-assignment-time-condtions-1nu5pbp/)
| [Understanding about 'bundling' checkboxes](/en/article/understanding-about-bundling-checkboxes-1s0xpkz/)
| [Understanding about 'trip optimizing' conditions](/en/article/understanding-about-trip-optimizing-conditions-p9pigf/)

| **Here is the article that contains the step-by-step tray articles you can follow and learn from:**
| [What are the features of the "Trays" tab? How can I read the "Trays" article sequentially](/en/article/what-are-the-features-of-the-trays-tab-how-can-i-read-the-trays-article-sequentially-zz2ui9/)



| **Check the app's status here.** [If you can't access Dropboy, chat or report issues](https://dropboy.crisp.watch/en/)