Manage access in power using power automate

[monikaprakash_1]

Hi

I am  trying to develop an flow like, in my power apps application when a user is logged in, user can upload his signature..

Here i want to save the signature in share point and retrieve them, and also i want to secure the data.. Must block the other users opening the signature folder of each  user..

I created a flow for create file.. First I created a folder inside Documents. And named as Signature..

Then i created folder inside Signature with user_id(unique key) as the file name. inside the folder i saved the signature .(name generated like username_userId) the folder creation is dynamic.. I am able to do this all.. Now i want to restrict the folder access., means if there are 2 employees, for each employee they are only access to their folder only(i can get the user email id also).

one user cant access the data of other user. . Then I  tried  'Stop sharing an item or file ' action but it showing

Exception of type 'Microsoft.SharePoint.SPConnectorException' was thrown.

exception.. I am not sure how can this solve.. How can I do this security issue?

 

[mgudites1]

I just found your post after troubleshooting the same exact thing this morning. The problem is even though the flow itself is running as a specific service-user, it's still running the steps as the user who hit "submit" in the PowerApp. The only way I've found to use ONE flow to do it all would to be giving the users submitting the PowerApps submissions "Full Control" permissions, which gives them the ability to adjust permissions in the SharePoint...which, is too high a level of permissions. I think what I'm going to try next is using one Power Automate workflow for the PowerApp portion itself, and then another workflow for the permissions piece. It's lame but, it's all I can come up with at this point.