Genesys Salesforce Integration - PureConnect for Salesforce

Hello!
I’m working with Genesys Cloud and Salesforce.
I’m using PureConnect for Salesforce app, a connector bewteen both platforms, available in Salesforce’s AppExchange.

The connector automatically search the contact in salesforce by ANI, but I need pop screen based in a custom data.

I can’t access to a custom data before execute the VisualForce.

Has anyone made this integration?

Thanks!