Enforce Calculation of Rollup fields

Rollup fields are handy in many scenarios, it takes one hours to update by default. If the business case needs real time updating, we can write plugin/WF to enforce the recalculation based on trigger. In such situation, below generic method can be used.

public static void EnforceCalculationRollup(IOrganizationService OrganizationService, EntityReference record, string rollupField)
{
CalculateRollupFieldRequest rollupRequest = new CalculateRollupFieldRequest { Target = record, FieldName = rollupField };
CalculateRollupFieldResponse response = (CalculateRollupFieldResponse)OrganizationService.Execute(rollupRequest);
Entity entity = response.Entity;
OrganizationService.Update(entity);
}

Hope this helps!