# Make an inventory system

**URL:** <https://forum.adalo.com/t/make-an-inventory-system/28916>\
**Category:** Get Help\
**Created:** [June 30, 2022, 3:35pm UTC](https://forum.adalo.com/t/make-an-inventory-system/28916 "2022-06-30T15:35:08Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![dixonmatt45](https://avatars.discourse-cdn.com/v4/letter/d/5e9695/32.png) [@dixonmatt45](https://forum.adalo.com/u/dixonmatt45)\
**Post date:** [June 30, 2022, 3:35pm UTC](https://forum.adalo.com/t/make-an-inventory-system/28916/1 "2022-06-30T15:35:08Z")

</div>

Hey all, I have built an app to order products and want to put an inventory system in place. Once an order is placed i would like the current order item quantity to be subtracted from the current items inventory. This way a list can be filtered to only show items which the inventory is not equal to 0 and to avoid items that are out of stock being ordered.

Sounds super easy but I do not know why i cannot figure it out! Someone please help.

 ![Screenshot](https://us1.discourse-cdn.com/flex020/uploads/adalo/original/3X/a/8/a8f2b360a098f3747da4cd0a5c5e32de542eb8b2.png)  
This shows the database and flow in the app. There are categories which have items inside of them. A user creates an order and adds order items into the order.

---

<div class="post-metadata">

**Author:** ![Yongki](https://avatars.discourse-cdn.com/v4/letter/y/7c8e57/32.png) [@Yongki](https://forum.adalo.com/u/Yongki)\
**Post date:** [June 30, 2022, 3:49pm UTC](https://forum.adalo.com/t/make-an-inventory-system/28916/2 "2022-06-30T15:49:54Z")

</div>

Hi @dixonmatt45 ,

This subtracting process is similar to online ordering, it is just you add stock property in products collection and do update action whenever transaction is saved.

Take a look at free cloneable app in Resources category.

---

<div class="post-metadata">

**Author:** ![dixonmatt45](https://avatars.discourse-cdn.com/v4/letter/d/5e9695/32.png) [@dixonmatt45](https://forum.adalo.com/u/dixonmatt45)\
**Post date:** [June 30, 2022, 4:30pm UTC](https://forum.adalo.com/t/make-an-inventory-system/28916/3 "2022-06-30T16:30:20Z")

</div>

Hey @Yongki ,

Which cloneable app is it? That is exactly the process I though, but i cannot seem to get it to work.

---

<div class="post-metadata">

**Author:** ![Yongki](https://avatars.discourse-cdn.com/v4/letter/y/7c8e57/32.png) [@Yongki](https://forum.adalo.com/u/Yongki)\
**Post date:** [June 30, 2022, 10:27pm UTC](https://forum.adalo.com/t/make-an-inventory-system/28916/4 "2022-06-30T22:27:15Z")

</div>

It is online ordering app here,

> [@Let's build Online Ordering App (clone-able)](https://forum.adalo.com/t/lets-build-online-ordering-app-clone-able/27052):
>
> This is one of PSABH series. This is an example app that shows a multi-sided app (as Business and as Customer) and how online ordering works in Adalo. Customers can create order and complete them and start new order again. Business can monitor the transactions as customers create them. Play around and ask questions if you are interested. Business can monitor the transactions [compressed 2022-05-11 at 8.18.42 AM (1)] 2 customers create orders, the…

---

<div class="post-metadata">

**Author:** ![system](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.adalo.com/system/32/40401_2.png) [@system](https://forum.adalo.com/u/system)\
**Post date:** [July 10, 2022, 10:27pm UTC](https://forum.adalo.com/t/make-an-inventory-system/28916/5 "2022-07-10T22:27:34Z")

</div>

Closed on July 10, 2022, 10:27pm UTC

This topic was automatically closed 10 days after the last reply. New replies are no longer allowed.