Hi,
I am creating a PowerApp to automate the creation of SharePoint sites. Currently i have a list that is populated by the PowerApp to contain all the relevant information on the new site. I have a column in this list called "SiteURL", then in the powerapp i have a text input called "URL". My data source is called "Requests", basically i want a way to check the "URL" input against the "SiteURL" column to see if it has already been entered and then display an error message to the user prompting them to enter a different URL.
If(IsBlank(LookUp('Workspace Requests Dev', SiteUrl = URL.Text)),"Invalid" )
Here is the direction i was going in but unsure if this is even remotely correct. Any help on this issue would be brilliant thank you!