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Validation failed (409) - Invalid large app icon - iOS
Question
Application Type
Mobile

Hi All, 

I have been faced with a challenge when sending a new version of Mobile(ODC) to Testflight with a new updated logo. The following error is observed from Transporter "Validation failed (409) . The large app icon in the asset catalog in "AppName.app" can't be transparent or contain an alpha channel . For details : visit apple guidelines ...." .


The logo is placed under images, size 1024x1024 , accessing that from extensibility through '$images.Applogo'. I have checked and ensure that the image is not transparent and does not contain any alpha channels .

Let me know if you require more information on this .


Thank you,

Ishmael


Screenshot 2026-02-17 110709.png
UserImage.jpg
Ishmael
Solution

Hi @Manish Jawla ,
We managed to solve this issue , the market team did some work on our logo and it worked . Appreciate your input .


Regards

Ishmael 

2019-11-11 17-10-24
Manish Jawla
 
MVP

Hi @Ishmael ,

The error occurs because the 1024×1024 App Store icon included in the iOS build contains an alpha channel (transparency). Apple requires the large App Store icon to be a PNG without any transparency.

How to fix it:

  • Re-export the 1024×1024 icon as a PNG with no alpha/transparency (flatten it onto a solid background).

  • Replace the icon in your project (AppIcon asset / OutSystems images).

  • Rebuild the iOS app and re-upload it.

Even if the image looks opaque, it may still contain an invisible alpha channel, which causes Apple’s validation to fail.

https://stackoverflow.com/questions/46585809/error-itms-90717-invalid-app-store-icon 

https://www.repeato.app/resolving-the-invalid-app-store-icon-error/ 

Hope this helps,

regards,

Manish Jawla

UserImage.jpg
Ishmael

Hi @Manish Jawla , 

Thank you , I will try this and give you a feedback.

UserImage.jpg
Ishmael
Solution

Hi @Manish Jawla ,
We managed to solve this issue , the market team did some work on our logo and it worked . Appreciate your input .


Regards

Ishmael 

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