ECAD > Working With ECAD Assemblies > Creating ECAD Assemblies > About ECAD-MCAD Collaboration from an ECAD Assembly
  
About ECAD-MCAD Collaboration from an ECAD Assembly
For best results during ECAD-MCAD collaboration, make sure that the open ECAD assembly is the Master Representation. You can enter collaboration in the bended state and the flexible board outline is supported.
When you enter collaboration from an ECAD assembly, the following restrictions apply:
Changes made to the flexible board outline on the ECAD side cannot be accepted on the MCAD side, except for the board height.
Changes to holes and components on bended areas are not accepted.