It has extended the support for External Reference Code to other Liferay entities in version 7.4. With this new parameter, users will be able to access, create, update and delete various entities by simply specifying the scopeKey
and the external reference code.
This External Reference Code is a custom identifier, which means that at the creation time it can be set, helping to migrate entities from one environment to another while keeping this External Reference Code the same across environments. You can check the available endpoints to be accessed by External Reference Code in the API explorer.