# Invalid app Reference?

**URL:** https://forum.algorand.co/t/invalid-app-reference/6470
**Category:** General
**Tags:** teal
**Created:** [April 13, 2022, 1:50pm UTC](https://forum.algorand.co/t/invalid-app-reference/6470 "2022-04-13T13:50:44Z")
**Posts on this page:** 1
**Showing post:** 2

<div class="post-metadata">

### Author: ![fabrice](https://avatars.discourse-cdn.com/v4/letter/f/5fc32e/32.png) [@fabrice](https://forum.algorand.co/u/fabrice)
#### Post date: [April 13, 2022, 2:19pm UTC](https://forum.algorand.co/t/invalid-app-reference/6470/2 "2022-04-13T14:19:49Z")

</div>

You need the application ID to be in the foreign application array of the transaction.

---

_[View the full topic](https://forum.algorand.co/t/invalid-app-reference/6470)._