Join when aggregation is enabled on a data source should be of type LEFT and not INNER.

CHANGELOG.md

@@ -7,6 +7,7 @@
 * Fixed issue with aggregation fields and a subquery data flow.
 * Fixed issue with backwards compatibility and field drop down.
 * Fixed issue with date filter and civicrm version before 5.25
+* Join when aggregation is enabled on a data source should be of type LEFT and not INNER.
 
 # Version 1.24.1
 

Civi/DataProcessor/Source/AbstractCivicrmEntitySource.php

@@ -222,7 +222,7 @@ abstract class AbstractCivicrmEntitySource extends AbstractSource {
       $groupByFields[] = $field;
     }
 
-    $join = new SimpleNonRequiredJoin($entityTableAlias, $this->getAggregateField(), $this->aggregationDateFlow->getPrimaryTableAlias(), $this->getAggregateField(), 'INNER');
+    $join = new SimpleNonRequiredJoin($entityTableAlias, $this->getAggregateField(), $this->aggregationDateFlow->getPrimaryTableAlias(), $this->getAggregateField(), 'LEFT');
     foreach($groupByFields as $groupByField) {
       $join->addFilterClause(new PureSqlStatementClause("`{$entityTableAlias}`.`{$groupByField->alias}` = `{$this->aggregationDateFlow->getPrimaryTableAlias()}`.`{$groupByField->alias}`", TRUE));
     }