If you have Customer A and Customer B, that are using your Integration Connector, you can, when sending the Trigger Event, tell which Customer that should be reached by this event.
CopylIntegrationPlatformHelper copylIntegrationPlatformHelper = new CopylIntegrationPlatformHelper(_context, _logger);
var credentials = new string[] { "customerId: Acme", "passkey: abc123" };
await copylIntegrationPlatformHelper.SendEventToCIPAsync(_configuration,_obj,"Example1","",credentials);
The credentials is a dynamic array so you can attach any properties and values to it.