diff --git a/src/Command/TransformationCommand.php b/src/Command/TransformationCommand.php
index cd3921e6..4d654601 100644
--- a/src/Command/TransformationCommand.php
+++ b/src/Command/TransformationCommand.php
@@ -74,9 +74,18 @@ public function execute(string $file, string $source, string $workpath, bool $de
             new OutputLogger()
         );
 
+        // reading the app_context file
+        $transformationDir = pathinfo($file, PATHINFO_DIRNAME);
+        $contextFile = $transformationDir.DIRECTORY_SEPARATOR.'app_context.yaml';
+        $context = (is_file($contextFile)) ? Yaml::parseFile($contextFile) : [];
+
         $transformationFile = ArrayFunctions::array_filter_recursive(Yaml::parseFile($file), function ($value) {
             return $value !== NULL;
         });
+
+        // merging it with the original MAIN-step.yaml, after this point the two are merged
+        $transformationFile = ArrayFunctions::array_merge_recursive($context, $transformationFile);
+
         $configuration = $configurationFactory->parseDirectivesFromConfiguration(
             array_replace_recursive($transformationFile, [
                 'context' => [
diff --git a/src/Component/Common/Functions/ArrayFunctions.php b/src/Component/Common/Functions/ArrayFunctions.php
index 1e4a4e19..54ce6484 100644
--- a/src/Component/Common/Functions/ArrayFunctions.php
+++ b/src/Component/Common/Functions/ArrayFunctions.php
@@ -202,6 +202,20 @@ public static function array_filter_recursive(array $array, callable $callback):
         });
     }
 
+    public static function array_merge_recursive(array &$array1, array $array2) {
+        foreach ($array2 as $key => $value) {
+            // If the value is an array and the key exists in both arrays
+            if (is_array($value) && isset($array1[$key]) && is_array($array1[$key])) {
+                self::array_merge_recursive($array1[$key], $value);
+            } else {
+                // Overwrite the value in the first array
+                $array1[$key] = $value;
+            }
+        }
+
+        return $array1;
+    }
+
     public static function fill_with_empty(array $array): array
     {
         return array_fill_keys($array, null);