# Error opening app: Null return from OpenApp
**URL:** https://community.easyqlik.com/t/error-opening-app-null-return-from-openapp/491
**Category:** QSDA
**Created:** [November 7, 2024, 2:11pm UTC](https://community.easyqlik.com/t/error-opening-app-null-return-from-openapp/491 "2024-11-07T14:11:10Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@coengiesberts](https://community.easyqlik.com/u/coengiesberts)
#### Post date: [November 7, 2024, 2:11pm UTC](https://community.easyqlik.com/t/error-opening-app-null-return-from-openapp/491/1 "2024-11-07T14:11:11Z")
I am fairly new to QSDA. I have linked QSDA to mulitple Qlik Cloud tenants. On one tenant, all apps that I try to analyze fail with the message: Error opening app: Null return from OpenApp.
What could be the cause for this error?
---
### Author:  [@rob](https://community.easyqlik.com/u/rob)
#### Post date: [November 8, 2024, 1:06am UTC](https://community.easyqlik.com/t/error-opening-app-null-return-from-openapp/491/2 "2024-11-08T01:06:39Z")
This error is likely security related. Do these apps have section access applied?
-Rob
---
### Author:  [@coengiesberts](https://community.easyqlik.com/u/coengiesberts)
#### Post date: [November 8, 2024, 8:39am UTC](https://community.easyqlik.com/t/error-opening-app-null-return-from-openapp/491/3 "2024-11-08T08:39:07Z")
Okay, only a couple have it, but most of them don’t have section access. What other security reasons could there be?
---
### Author:  [@rob](https://community.easyqlik.com/u/rob)
#### Post date: [November 11, 2024, 12:05am UTC](https://community.easyqlik.com/t/error-opening-app-null-return-from-openapp/491/4 "2024-11-11T00:05:27Z")
Take a look in the log for any error messages. If you have QSDA 3.2 or later, use the menu \> Admin \> Error Logs. Otherwise look in c:\program data\EasyQlik\QSDA\log.
What type of authentication are you using? ApiKey or OAuth?
-Rob
---
### Author:  [@rob](https://community.easyqlik.com/u/rob)
#### Post date: [November 23, 2024, 1:16am UTC](https://community.easyqlik.com/t/error-opening-app-null-return-from-openapp/491/5 "2024-11-23T01:16:35Z")
If you are using OAuth authentication, make sure the user created for OAuth (same name as the OAuth configuration in the Qlik Admin Console) has a license assigned and sufficient roles to open the App.
-Rob
---
### Author:  [@coengiesberts](https://community.easyqlik.com/u/coengiesberts)
#### Post date: [November 25, 2024, 10:25am UTC](https://community.easyqlik.com/t/error-opening-app-null-return-from-openapp/491/6 "2024-11-25T10:25:28Z")
Gotcha!
I am using OAuth and the user created for OAuth did not have a license. I assigned a license and now it works