Changes to Master Data 
Different types of changes to master data require different handling in the system. These different types are listed below:
You want to change normal master record information and entries regarding valuation.
You want to change time-dependent allocations to organizational units that are not relevant to the balance sheet (for example, plant).
You want to change time-dependent allocations to organizational units that are relevant to the balance sheet.
The organizational units that are relevant to the balance sheet in this context are business area and profit center. The system determines the profit center for the asset indirectly on the basis of the asset’s cost center. The cost center can also be assigned to a business area. Therefore, the cost center is in this sense also relevant to the balance sheet.
You want to change the assignment of the asset to the asset class.
You can change normal asset master record information by simply changing the field contents in the asset master record.
Time-dependent allocations of an asset to organizational units that are not relevant to the balance sheet can also be made directly in the asset master record. You have to enter the time period for the change. You may also have to enter a new time interval.
The following variants exist for changing the assignment to organizational units that are relevant to the balance sheet (business area, cost center/profit center):
The first method is changing the assignment using the master data transaction. However, you can only use this method if the Business Area and Cost Center master data fields are not managed as time-dependent. You can set the business area and cost center to not be time-independent in Customizing for Asset Accounting under Master Data.
When you change one of these organizational units in the asset master record, the system automatically creates a transfer document with the acquisition and the retirement, as well as a master data change document. The system uses the system date as the standard default posting date for the automatically created document. However, you can also change this posting date using a substitution (see Validation and Substitution).
It is not possible to change only one particular time interval. Changes that take effect on a specific date are also not possible. For both of these reasons, the system is not able to create a history for the assignment to a cost center/profit center. After a change is made, the system displays the new business area or cost center/profit center in all subsequent reports (even if the report is for a time period prior to the change).
The other option is to change the assignment of business area or cost center/profit center by posting an asset transfer to a new master record, rather than making the change in the asset master data.
You have to use this method if the Business Area and Cost Center master data fields are managed as time-dependent. When you use this method, the system displays the business area or cost center that is valid for the given time period in all reports.
No matter which of these methods you use, the system ensures continuity in your business area balance sheets and profit center balance sheets.
Changing the asset class is possible only by posting a transfer to a new asset master record.