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va19gupta
Frequent Visitor

Leave request app - all users should not have access to the excel file

I used the leave request template for my small organization, It looks fine to me untill i see that i have to provide "write" access on the eccel file to all my users. If i do not give access of this excel file (created by this app automatically) to users then they are not able to apply the leaves using the app. it throws errors.

This way any user can edit the details from the file itself. Please let me know if i am missing something? or is this the way Leave request app works?

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WarrenBelz
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Most Valuable Professional

Hi @va19gupta ,

SharePoint has some control of this (which I have used for many years) by setting a custom permission level based on Contribute with View Application Pages disabled (so the user cannot open a SharePoint list view), but if you must use Excel (not a good data source for Power Apps compared with SharePoint), then there is no way of doing this other than simply not telling the user where the file is (do not send sharing emails).

 

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WarrenBelz
Most Valuable Professional
Most Valuable Professional

Hi @va19gupta ,

No - you are not missing anything - for a user to be able to write to a data source, they need read/write access - that is a fundamental principle of all data base sources.

 

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

MVP (Business Applications)   Visit my blog Practical Power Apps

 

 

va19gupta
Frequent Visitor

Thanks @WarrenBelz.  What would you suggest i should do as the easiest way in this app to block the accessof all other users?

The answer is to use a better data source, one that is designed to be used as a database, e.g. Dataverse - I believe even SharePoint lists (which are by far the most popular data storage for PowerApps) still have to be made accessible to users and therefore they can access the data without using the app.

 

There are some funky ways people try to "block" access to the SharePoint lists, but as far as I know, there is no bulletproof way, as an example, see this thread: https://powerusers.microsoft.com/t5/Building-Power-Apps/Prevent-people-from-accessing-SharePoint-lis...

WarrenBelz
Most Valuable Professional
Most Valuable Professional

Hi @va19gupta ,

SharePoint has some control of this (which I have used for many years) by setting a custom permission level based on Contribute with View Application Pages disabled (so the user cannot open a SharePoint list view), but if you must use Excel (not a good data source for Power Apps compared with SharePoint), then there is no way of doing this other than simply not telling the user where the file is (do not send sharing emails).

 

Please click Accept as solution if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider giving it Thumbs Up.

MVP (Business Applications)   Visit my blog Practical Power Apps

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