Setting Global Variable to Define User Permissions

[tsparkman]

Hi All - 

I'm new to Power Apps and am hoping someone can help. I have an app that's connected to a SharePoint site that contains two lists:

1. Spend Requests
2. Spend Admins

The Spend Admins list contains two columns:

1. Title - this contains the user's email address
2. Role - this contains a value of either FIN or SCM. The column type is Choice or dropdown.

In my app, I want to hide or display buttons depending on whether the logged in user's role is set to FIN or SCM. I'm thinking that I want to set a global variable in the Application OnStart to do the lookup once and assign the variable that I can then use throughout my app to set button Visible properties. I'm having difficulty with the syntax to set the global variable. Any help is greatly appreciated.

[WarrenBelz · Accepted solution]

Hi @tsparkman ,

Something like this at App OnStart

Set(varUserMail,User().Email);
Set(
   varRequestRole,
   Lookup(
      'Spend Request',
      Title=varUserMail
   ).Role
);
Set(
   varAdminRole,
   Lookup(
      'Spend Admins',
      Title=varUserMail
   ).Role
)

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[tsparkman]

Thank you @WarrenBelz!

This was exactly what I was looking for. One small change in case others a reading to find a similar solution. I had to put .Value after Role since it is a drop-down field.

Set(varUserMail,User().Email);

Set(
varAdminRole,
Lookup(
'Spend Admins',
Title=varUserMail
).Role.Value
)