ECAD > Working in ECAD-MCAD Collaboration Mode > About the Incremental Update of the IDX File and ECAD Assembly
  
About the Incremental Update of the IDX File and ECAD Assembly
You can set the state of the validated transactions to Accept or Reject in Creo View ECAD Validate and commit the accepted transactions to the assembly database in Creo Parametric. You can also save the transaction state changes to the IDX file. The IDX file and the assembly design are updated with the selected changed data.
 
* Components with the ECAD_PART_TYPE parameter value Other Outlines are not supported by IDX. To highlight changes you must change the ECAD_PART_TYPE parameter value to Mechanical. The component is now considered by IDX as a regular mechanical component.
The update of the IDX file and the assembly design is selective and incremental and only includes the changed objects that you have accepted. The changed objects include the modified geometry of the board outline and the added, removed, moved, and modified ECAD assembly components. The changed objects that are rejected are restored to their original state in Creo Parametric, as they were before the start of the collaborative session. You can use the Creo ParametricAnalysis tab and the Global Interference dialog box to check for interference before you reject a changed object.
 
* An added component that constitutes the incremental change, with the component model name specified in the IDX file, requires a part. If Creo Parametric finds the required part, it is used by the added component. Creo Parametric can find this part through the ecad_hint.map file. If Creo Parametric does not find the part for the new component, it displays an appropriate message.
The incremental update of the ECAD assembly breaks dependencies and affects downstream features. The ECAD Changes Notification and the Board update - Break of dependency dialog boxes inform you about the suppressed objects, regeneration failures, the break in dependencies, and the redefinition of features. The ECAD log file also records the updates and lists the suppressed and failed objects. Creo Parametric automatically handles such feature failures and resolves downstream issues resulting from the incremental update of the ECAD assembly.