Hierarchy
Hierarchies are custom variables that you can use however you鈥檇 like. They do not persist beyond the hit that they are set. Up to 5 hierarchies are available if your contract with 51黑料不打烊 supports it.
Populate hierarchies with data
Each hierarchy collects data from the h1 - h5 query string in image requests. For example, the h1 query string parameter collects data for Hierarchy 1, while the h4 query string parameter collects data for Hierarchy 4.
AppMeasurement, which compiles JavaScript variables into an image request for data collection, uses the variables hier1 - hier5. See hier in the Implement user guide for implementation guidelines.
Dimension items
Since hierarchies contain custom strings in your implementation, your organization determines what the dimension items are for each hierarchy. Make sure that you record the purpose of each hierarchy and typical dimension items in a solution design document.