Solid bodies must be selected for a Body Merge.

Selected bodies must share at least one face with another selected body.

Any number of bodies can be selected for a Body Merge. The total number is limited only by your computing resources.

A model can contain only one Body Merge object.

Performing a Body Merge can affect scoping, meshing, and body attributes. Ansys strongly recommends that you assign materials, boundary conditions, and other model attributes to the merged body (not the individual bodies that comprise it).

Deleting the geometry import or changing the geometry will clear the Body Merge.

You cannot add a Body Merge object if the model contains a Part Transform, Mesh Workflow, or Virtual Topology. The reverse is also true: you cannot add these features if the model contains a Body Merge object.