Activity Forums Salesforce Questions and Answers Define the various characters of Roll-up Summary Field in Salesforce?

  • Aman

    September 23, 2018 at 9:09 am

    Define the various characters of Roll-up Summary Field in Salesforce?

  • shariq

    September 23, 2018 at 9:09 am

    Roll-Up Summary field can be created only in a object which is referred as a object with a master detailed relationship field.
    Roll-Up Summary field can only created for Master-detail Relationship.
    Roll-Up Summary field can not be  created for Look-up Relationship.
    It Derives the data from child Object.
    We can’t change field type of a field that we reference in a roll-up summary field.
    Auto numbers are not available here.
    Roll-Up Summary fields are not available for mapping lead fields of converted fields.

  • Parul

    September 23, 2018 at 9:50 am

    refer this page, to study more about the roll up fields.

    The Roll up Summary field is basically of 4 types:

    As, per our previous sessions on salesforce, lets create roll up field on object Course because this is the Master object.

    I want to calculate total income from a course:

    Go to App Setup | Create | Objects and click on New field and Select Roll up summary field.

    In Step 2, enter the field name and help text etc.

    For step 3, you will see below screen

    In above image, at 1 we have to select the child object, at 2 we have to select the field on which it should calculate.

    In our case, Fees paid field is of Formula type which works on currency.

    And in section 3 you ca specify weather this roll up summary field include all record or any specific record which comes under the criteria you specified.

    So, after creation of Roll up field on Master object final look is shown below:

    adding some points:

    While your formula fields calculate values using fields within a single record, roll-up summary field calculate values from a set of related records, such as those in a related list. You can create roll-up summary fields that automatically display a value on a master record based on the values of records in a detailed record. These detail records must be directly related to the master through a master-detail relationship.

    Hope now you got your ans!.


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