| # Maintaining Aggregation Relationshops Before you can define aggregation relationships, you must define plan items and sub-plan items in the Items - Planning (cprpd1100m000) session. Possible aggregation relationships are:
normal plan item | family item
channel item | normal plan item
family item | family item
channel item | family item
channel item | channel family item
channel family item | channel family item
Usually, if the main item is not of type Family, the sub-item is the same as the main item, and only the channel must be filled. To define aggregation relationships: Click the New Group button to insert a plan item for which you want to define aggregation relationships. You can also insert a cluster and/or a channel. Click the Add a New Record button to insert sub-plan items. Determine the planning percentages for the sub-plan items. You can either enter a planning percentage manually in the Aggregation Relationships (cprpd3110m000) details session, or calculate a planning percentage automatically with the Calculate (Dis)Aggregation Percentages (cprpd3210m000) session. You can start this session from the Specific menu, or just click the Calculate Planning Percentages button. You can use the Aggregation Type field in the Aggregation Relationships (cprpd3110m000) details session to determine whether Enterprise Planning must aggregate, disaggregate, or both. The setting of this field is determinant for the way in which Enterprise Planning applies the data percentages that you define for the various types of aggregation data. Click the Sub-Plan-Item - Where-Used in Aggregation Relationships button to zoom to the Sub-Plan-Item - Where-Used in Aggregation Relationships (cprpd3515m000) session, where you see in which aggregation relationships a specific Sub plan item is used. Click the Calculate (Dis)Aggregation Percentages button to zoom to the Calculate (Dis)Aggregation Percentages (cprpd3210m000) session, where you can let ERP LN calculate the planning percentages for aggregation relationships. ERP LN uses aggregation relationships in the Aggregate Channel, Plans & Orders (cprmp2250m000) session and the Disaggregate Channel, Plans & Orders (cprmp2260m000) session. Note You can also use the Generate Aggregation Relationships (cprpd3211m000) session to let ERP LN generate aggregation relationships for a specific family item and a given range of sub-items, and fine-tune the settings for a specific aggregation relationship in the Aggregation Relationships (cprpd3110m000) session. Related topics Aggregated planning Plan levels and product families Aggregation of planning data Disaggregation of planning data To set up an aggregation structure Disaggregation rules Aggregation of channels |