In Salesforce, it is possible to create custom objects with duplicate labels. However, when using SmartConnect for Salesforce object lookup, which relies on label names, mapping custom objects with the same label becomes problematic. In such cases, SmartConnect defaults to the first object label encountered, which leads to mapping issues.
For example, the Salesforce objects Address and Address__c both have the same Label “Address”. If you need to map to the Address__c object, SmartConnect will point to the other Address object as default.
Resolution
SmartConnect has an option on the Salesforce connector called Duplicate aliases, where you can define a different label name.
In the Duplicate Aliases window, you can link a new display name that will show inside SmartConnect with the object’s technical name.
Add any needed aliases and save each instance of a duplicated object label with a new display name. Once complete, lookups should work as expected within SmartConnect.