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Caution: Do not modify or delete subscriber mapping tables with Core Tool when SAP Convergent Charging is integrated with a CRM application or a provisioning system. Creating, modifying, or deleting subscriber mapping tables may result in inconsistencies between the two systems because of data replication and synchronization mechanisms. To modify a subscriber mapping table, you must use the CRM or provisioning system.
The manual procedures detailed in this section are relevant in:
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A subscriber mapping table 
is similar to a mapping table except that it is a master data related to end customers. It is attached to a subscriber account instead of being defined in a pricing catalog of the service provider. It is used to redefine the values of a mapping table for a specific customer or a group of end customers.
A subscriber mapping table allows you to create new properties that you can use in pricing logic assigned to a provider contract (see activating charge or refill plans).
You define the structure of a subscriber mapping table in a mapping table class.
A subscriber mapping table is an n-dimensional table composed of a set of rows.
Each row of the subscriber mapping table consists of a set of values of input columns (I1, I2, I3,..., In) to which corresponds a set of values of output columns (O1, O2, O3,..., On). For each row, you have to specify the period during which the row is valid.
Before creating a subscriber mapping table, you must create, set up, and save a mapping table class.
Here are the main steps you have to perform for using subscriber mapping tables:
Create a subscriber mapping table. Then the subscriber mapping table is attached to a subscriber account.
Set up the subscriber mapping table
Save the subscriber mapping table
Use the subscriber mapping table in a provider contract related to the subscriber account the subscriber mapping table is attached to. You have to set a parameter with the type Mapping Tables ID at contract item level.
Delete the subscriber mapping table.
You can use the same mapping table class for building different mapping tables and subscriber mapping tables.
You can modify and save different versions of a subscriber range table.
This customer master data must be created an maintained by an external system connected to the SAP CC system during the provisioning process.