When you connect with Lucidchart from Trelica you have to enter a SCIM Bearer Token. This page shows you how you can find this in Lucidchart.
You must have a Lucidchart Enterprise plan with SCIM enabled, and be an administrator of Lucidchart in order to connect with Trelica.
In Lucidchart, go to Admin > App Integration > SCIM
Click Generate token and Lucidchart will populate the Bearer Token field.
Click Copy and then paste this into the field in Trelica.