You must enable security settings to allow Conga Composer to interact with your data:
For each user profile that has access to Conga Composer, ensure theAPI Enabledsetting is active.
If you want to use Salesforce® Reports as a data source for Composer solutions, ensure thatRun ReportsandExport Reportsare enabled for each user profile that has access to Conga Composer.
Do not setLock IP Sessionsin Salesforce. Doing this will disable Conga Composer from being able to communicate with Salesforce, rendering Conga Composer unusable.