Engineering Change Requests (ECRs) 
Note
This section is relevant only for document management (DM) on the SAP GUI. It is not relevant for document management on the PLM Web UI.
An engineering change request controls the change processes for chosen change objects (for example, BOMs, routings, and documents) according to a predefined change type. For example, the sequence of change functions is determined by an internally defined status network (system status) and the user status (if one exists).
Prerequisites
You have created an engineering change request that supports document processing.
Creating an engineering change request means creating an engineering change master with reference to a change type (for more information, see the SAP Library Engineering Change Management (LO-ECH)).
Process
The change process with reference to a change request occurs in the following processes:
The following graphic shows the change process from the creation of an engineering change request to the released change status. You cannot process the document until you have converted the engineering change request (ECR) to an engineering change order (ECO).
