environment:space:connection — Used for files located within environments (containers for data synchronized between Qlik Cloud and Qlik Talend Cloud). Environments are associated to spaces (particularly, data spaces).
For more information about environments, see Synchronizing and managing environments.
space:connection — Used for connections with a space as the top-level storage container or in the same environment as the loading application. This could be connections located in shared, managed, or data spaces.
For example, for a dataset stored locally within Qlik Cloud (DataFiles connection), located in a space named Sales Analysis, you would use following: Sales Analysis:DataFiles
connection — Connection name only. This refers to connections located in your personal space. In this case, the connection would simply be: DataFiles