What dictates the need for hierarchy columns in merged component worksheets?

Hierarchy columns in merged component worksheets are essential when any individual worksheet within the merged set contains hierarchy columns. These columns are used to establish a structure in which data items are organized in a tiered manner, allowing for a clear representation of relationships within the data. When one worksheet features hierarchy columns, it requires all merged worksheets to adopt these columns to maintain consistency and ensure that data can be interpreted correctly across the entire merged view.

In scenarios where hierarchy columns are present in any worksheet, they dictate how data from other worksheets aligns and corresponds to this hierarchical structure. This allows users to navigate through the data more intuitively, ensuring that relationships represented in the hierarchy are preserved during the merge process.