Additional Date Ranges for Trade Promotions 
You can enter planned and actual dates for a marketing project. You do this in the Dates assignment block of the marketing project. You can also define additional date ranges. These are customizable date ranges that you may maintain in addition to the planned and actual date ranges in the Dates assignment block. These dates could be, for example, buying periods, promotion dates, pre-dip or post-dip date ranges, or whatever best suits your business needs.
Prerequisites
You have made the following settings in Customizing for Customer
Relationship Management by choosing 
Marketing
Marketing Planning and Campaign Management
Basic Data Define Additional
Date Ranges 
:
Defined a name for the date range
Set the period type which indicates the purpose of the date
Indicated whether the date ranges are part of the buying pattern date interval (for trade promotions and deals only)
You do this by selecting the Buying pattern indicator beside each additional date range.
Optionally selected a Search Date ID to associate with the Date ID that you will configure to include as a search parameter.
Optionally selected an Extract Date ID to map the SAP CRM date range to the date range structure in SAP NetWeaver Business Intelligence (SAP NetWeaver BI).
Note
Account defaults have priority over the date ranges, therefore, date values may be overwritten when default values are generated.
In the Dates assignment block, you cannot remove a maintained date range if there is one or more trade spends linked to this date range. You must delete the linked trade spends first.
Result
You can define account default rules that enter default values
for these additional date ranges in Marketing
Account Defaults .
Activities
You can define up to 99 additional date ranges for trade promotions
and deals, and eight can be included as search parameters in Marketing Trade Promotions
.