Topic Identifiers
When linking other topics, you must somehow specify a topic. Topic doesn't have to have unique ID across all documentations. That's why there are topic identifiers - a way to specify single topic across all documentations
Topic identifiers are used in configuration, when linking different topics in buttons, and when opening specific topic using /voile command.
Format
Topic identifiers can have 4 formats:
Group:DocumentationId:topic_idGroup:topic_idDocumentationId:topic_idtopic_id
The most command ways to specify topic is with second and third option. The fourth option leaves you open to duplicate topic IDs across different documentations.
Example
Let's say there are two documentations:
MyGroupowning documentationMyDocumentationwith topichomeOtherGroupowning documentationOtherDocumentationwith topichome
Both of these documentation define topic home. Thus, specifying the topic just by its ID is insufficient. If we wanted to specify home topic in the second documentation, we can do it in these three ways:
OtherGroup:OtherDocumentation:homeOtherGroup:homeOtherDocumentation:home