Mass Change
During complex and extensive projects, it is often necessary to change large amounts of master data or assignments. You can use the mass change function to make cross-project changes to fields pertaining to project definitions, WBS elements, networks, activities, activity elements, milestones, and relationships.
However, the SAP system only makes the changes if the corresponding prerequisites have been fulfilled, or if the business activity is allowed and you have the appropriate authorization. The same authorization objects used for individual changes are used for mass changes. If the system cannot change a field value in a WBS element, it does not carry out the changes in this WBS element. However, if you want to include other WBS elements or networks in your selection for mass changes, and if errors do not occur there, the system carries out the changes in these projects.
Caution
If you make a mass change, remember that this might mean that many objects will change simultaneously. In many cases, you cannot undo the changes made. Therefore, always be particularly careful when you use this transaction.You can carry out a mass change that refers to a single project quickly and easily in the Project Builder, in the project planning board, or in structure planning. When you save the project, the system saves the changes.
To carry out a mass change relating to more than one project, you can use the structure info system or the transaction for mass changes in the Project System. In these cases you can carry out the mass changes online or plan them as background jobs. You can test the extent of your changes before you actually make a mass change. A log of the changes is issued for each mass change. The log can be saved and analyzed later.
When you make a mass change, you can select and change data in a variety of ways. You can carry out a mass change without viewing it first or you can check the planned changes ahead of time in a tabular view and carry out the change there. In both cases, you can decide whether the SAP system is to replace all values of the corresponding field with the new value or only a certain value. In the case of numeric fields, you can calculate the new field value using a formula from the old field value.
Compared to the simple transaction, the table form for mass changes has the following advantages:
You can show the old values of object fields; for example, the Company Code field for the WBS Element object. This way you can check the individual changes before you carry them out.
Objects can be selected manually or by entering conditions; for example, select all WBS elements that are in company code 1000 or 2000. Only selected objects are changed.
If you are still in tabular view, you can undo the planned changes.