Clicking the ECR button 
in the Library menu opens the ECR Editor.
An Engineering Change Request, or ECR, is sent by the engineering change system to alert the process engineers of pending engineering changes. This advance warning gives the engineer time to make adjustments to the mBOM and routings before the change is implemented.
Note: Not all manufacturers use ECRs. Some manufacturers only alert the process engineers once an Engineering Change Order (ECO) has been issued.
ECR Header
The ECR Header contains summary information about the requested changed. The fields include:
•ECR No: The identification number of the ECR, as received from the engineering system.
•Assigned To: The username of the manufacturing engineer to which the ECR has been assigned. This will be blank until the ECR is assigned.
•Status: Displays the state of the ECR. See possible values in ECR Status.
•Received On: The date on which the ECR was imported into the Assembly Planner system.
Note: ECRs must be processed according to their import date. If you wish to process an ECR with a later import date, you will need to first delete or process any older ECRs.
•Project No.: The project number generated from the engineering system.
•Description: A description of the requested change, as listed in the header file sent by the engineering system.
ECR Tabs
While Assembly Planner's ECR Header gives an overview of the requested engineering change, the ECR Tabs contain more detailed information. Three of the tabs correspond to the files Assembly Planner receives from the engineering system.
The Header Tab displays more detailed information that comes from the header in the engineering system.
The BOM Tab and Item Tab both display component (part) information. The BOM Tab shows the structured part list and structure-related component properties. The Item Tab shows a flat file containing global component properties.
Note: You can have a customizable view for the Header, BOM, and Item tabs in the ECR Editor. If you go to any of the Properties within the Header tab and right-click, you will see options including Copy and Customize View. If you select Customize View, you will get a list of all properties you can either move up or down the list based on importance. You also have an option of making some Properties visible and others invisible. You can also adjust the height of the rows in the Customize View window. This can be done by selecting the property and changing the row height at the bottom of the screen.