Hi,
Thank you for posting in Microsoft Q&A forum.
1,From the information, it seems you are using French (Français). Please submit your question in French (Français) forum to get more help.
https://learn.microsoft.com/fr-fr/answers/questions/
https://learn.microsoft.com/fr-ca/answers/questions/
2,0x87d00215 = Item not found. Usually, it appears when a package/app is assigned for deployment but cannot be found for downloading. You can redeploy the app to your DPs to have a try.
Thanks for your time. Have a nice day!
Best regards,
Simon
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