Each object can have more than one version. A new object version is created each time the object is included in a change list (for example, when you save for the first time). When the object is activated in the change list, the object version is then closed. If the changes made to an object in the change list are rejected, then the corresponding object version is returned. The object history displays all versions of an object that have “survived” by being activated in a change list.
More information: Change Lists
To display the previous versions of an object (that is, all versions except for the current object version), choose <Object> → History from the object menu in the object editor.
The screen Display History displays the following information for each version:
● The user who created the object version
● The date and time when the object version was created
The following values are possible for this attribute:
Always indicates the first object version. This is created when you activate for the first time or import.
Indicates versions in which changes were made to the object.
Indicates objects that have been deleted. Objects with this version are regarded as no longer being available.
For example, this situation may occur when multiple users open the same object and one user deletes it (then activates it in the change list).
To open a version, on the Display History screen, select the version and proceed as follows:
● Choose the context menu option Open Version ()
It is possible to open multiple versions simultaneously. To do this, select the versions concerned and choose Open Version () from the context menu. An object editor is opened for each version. The object name and the version are specified on the tab index. The version is also displayed in the Status field in the header of the object editor.
If you edit an old object version, this version becomes the current object version when you save it for the first time.