The log message means that the new item type will be created after a system update. The message indicates that the code CarProcessDefinition does not belong to a known type, which means that the item type has not been registered in the system yet. This can happen when a new item type is added to an items.xml file but the system has not been updated to reflect the changes. A system update will create the new item type and its corresponding deployment table. The message does not mean that the new item has been added without specifying a deployment table, that the new deployment table has been added without specifying a new item, or that the Java class associated to the new item is missing. Reference: 2

The steps that you should do before you report incorrect software behavior to SAP (third-level support) are documenting the complete technical environment information of the system where the incident occurred and reproducing and validating the problem on the standard out-of-the-box SAP Commerce. These steps are necessary to provide SAP with enough information to analyze and resolve the issue and to ensure that the issue is not caused by customizations or extensions. Reference: 2

SAP Commerce provides bug fixes to partners and customers through patch releases that contain only bug fixes and security patches. Patch releases are delivered on a regular basis and can be applied on top of the existing platform version without changing the functionality or requiring additional testing. SAP Commerce does not deliver small jar archives called Hot Fix, nor does it provide an extension that contains bug fixes or SAP Notes with code corrections for bug fixes. Reference: 1

You can check the SAP Commerce platform version in the bin/platform/build.number file or in the Administration Console. The build.number file contains information about the platform version, patch version, build date, and build number. The Administration Console displays the platform version on its main page. You cannot check the platform version in the bin/platform/project.properties file or in the command line by running ant-version, as these sources do not contain this information

The actions that you perform to use the EDMX schema are using the <Association> ... </Association> tag as a representation of the relationship between entity types, defining the structure of the payload that the Integration API will support for both inbound and outbound requests, and using odata2webservices to get the EDMX schema for the integration object. The EDMX schema is an XML-based format that describes the data model of an OData service. It defines the entity types, properties, associations, and functions that are exposed by the service. You can use odata2webservices to generate the EDMX schema for an integration object based on its item types and attributes. You do not use ComplexType and EdmSimpleType as part of the <Association> ... </Association> tag, nor do you update the EDMX schema by downloading it, changing it, and re-uploading it within the SAP Commerce Backoffice. Reference: 1