
Hi @Toussaint, Alexander ,
From a SharePoint perspective, SharePoint lists have a limit of 5000 items that can be displayed in a view. This is why the user is unable to search for IDs beyond the last 5000 items. To make the ID column searchable for all items, the user can create a filtered view that has a column index. This can be done by creating a new view for the list or library or changing the existing view, and using indexed columns and filtering to keep the view size for the list to 5000 items or less. For more information about how to create a filtered view that has a column index, go to Manage large lists and libraries in SharePoint.
Regarding Power Apps, as Power Apps are currently not supported in the Q&A forum, you can post in the Power Apps community for discussion.
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