Twopir has successfully implemented Declarative Lookup Rollup Summaries (DLRS) on Salesforce Platform. DLRS provides multiple functionality and best features which can be used by the organizations according to their needs.

  • The Declarative Lookup Rollup Summaries (DLRS) tool allows you to do things which are impossible to do with standard rollup summary fields.
  • The standard rollup fields work only on Master-Details relation and cannot really handle any time-based calculations,but DLRS can handle any type of relations.
  • You don’t have to write any code for the implementation.
  • DLRS can run on schedule which means time-based calculations are possible, and can also roll-up text fields.


  • Open source, available in code and managed package form.
  • Implementation is quicker.
  • No Coding Required.
  • DLRS supports a wide variety of SOQL-powered operations: Sum, Max, Min, Average, Count, Count Distinct, Concatenate, Concatenate Distinct, Return First, and Return Last.
  • Managed package has passed the Salesforce Security Review and is Aloha enabled.
  • Supports Custom Metadata.
  • Rollups can be included in Change Sets and Packages for easier deployment.


  • Salesforce has already Rollup Fields but it has some limitations specifically  the inability to do rollup summaries between lookup relationships. This is possible between master detail relationships using the declarative mode of, but not between lookup relationships.
  • In Such situation Declarative Lookup Rollup Summaries comes into scenario which not only do roll ups on lookups but also can be used to perform more advanced calculations on master-detail relationships than the standard rollup summary fields.


  • Schedule calculation mode, if you don’t need real time updates of your rollups, a schedule job will periodically update them for you. This calculation mode does not even require a trigger to be deployed.
  • Calculate button, if you add a rollup for existing child records or make some changes, this button will bring your rollup values up to date on the parent objects.
  • API, by providing an API, then developers who may already be writing triggers on the related objects, can call out to the engine and still leave the admin the ability to configure the rollups declaratively.
  • Further robustness improvements, better run time checking of fields defined on the rollup definition (in the case where these get renamed or deleted after the rollup was defined).


  • DLRS implementation with Salesforce
  • Helps to create rollup summary field effects between salesforce objects that share a lookup relationship.
  • Helps to aggregate data in minutes.


  • Define roll ups using standard UI declaratively
  • Define filter criteria on rollups 
  • Realtime rollup summaries calculations
  • Scheduled rollup summaries calculations
  • When calculation updated, just re-run it and have updated values without any extra work


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