Depreciation Periods are used in the depreciation calculation of Assets and are included within the Asset Type that is added to the Asset when it is created. Asset Types are further detailed in the Asset Types section.
Where the Depreciation Period is not included in the Asset Type that is added to the Asset, it can be also be added when creating an Asset as detailed in the Creating Assets section or when amending an Asset as detailed in the Amending Assets section.
Depreciation Periods can be viewed and maintained on the AM Control Data Maint form, which can be accessed via the AM Control Data form.
Select the Financials option on the Financials Web Main Menu:

Then select the Financials Admin menu option:

Then select the Assets Admin menu option:

Then select the AM Control Data menu option:

The AM Control Data form will open:

Select the drop-down on the Control Data Type field and a list of options will be available for selection:

Select the Depreciation Period option and click on the 
 button.  A Grid will be displayed at the bottom of the form that includes all the current Depreciation Periods:

Selecting the Filter option on the form will allow you to add further search criteria:

Add search criteria to these fields as required and clicking on the 
 button will refresh the Grid with Depreciation Periods that meet the search criteria.
The following buttons are available:
: Changing the search criteria in the filter fields and clicking on this button will refresh the Grid with Depreciation Periods that meet the new search criteria.Alternatively a different option can be selected in the Control Data Type field and clicking on this button will refresh the Grid and change the Filter fields for the selected type.
: Clicking on this button will clear all the fields, remove any Filter fields as well as any Grid at the bottom of the form.  The initial AM Control Data form will be displayed allowing you to add fresh details.To edit a Depreciation Period, click on the Edit link for the required Depreciation Period Line in the column to the far left of the Grid:

The AM Control Data Maint form will open:

The fields and options on this form are as follows (mandatory items are notated with a red asterisk *):
The following buttons are available:
: Clicking on this button will save changes that have been made to the fields on the form.  The AM Control Data Maint form will close and you will be returned to the AM Control Data form - the changes made to the Depreciation Period will be displayed in the Grid at the bottom of this form.
: Click on this button to delete the Depreciation Period.  A further screen will be displayed where you confirm that the Depreciation Period is to be deleted.  Please note: a Depreciation Period cannot be deleted where it has been added to an Asset with a status of at least 
, but it can still be suspended by selecting the Suspended option, detailed above.
: Clicking on this button will close the screen and no changes will be made to the selected Depreciation Period.  You will be returned to the AM Control Data form.