diff --git a/databox/api/src/Api/InputTransformer/AssetInputTransformer.php b/databox/api/src/Api/InputTransformer/AssetInputTransformer.php
index 11922165d..57e2c6b48 100644
--- a/databox/api/src/Api/InputTransformer/AssetInputTransformer.php
+++ b/databox/api/src/Api/InputTransformer/AssetInputTransformer.php
@@ -118,10 +118,19 @@ public function transform(object $data, string $resourceClass, array $context =
 
         if (!empty($data->renditions)) {
             foreach ($data->renditions as $renditionInput) {
-                $definition = $this->renditionManager->getRenditionDefinitionByName(
-                    $workspace,
-                    $renditionInput->definition
-                );
+                if ($renditionInput->definitionId) {
+                    $definition = $this->renditionManager->getRenditionDefinitionById(
+                        $workspace,
+                        $renditionInput->definitionId
+                    );
+                } elseif ($renditionInput->name) {
+                    $definition = $this->renditionManager->getRenditionDefinitionByName(
+                        $workspace,
+                        $renditionInput->name
+                    );
+                } else {
+                    throw new BadRequestHttpException('Rendition input error: You must provide either "name" or "definitionId"');
+                }
                 $rendition = $this->renditionManager->getOrCreateRendition($object, $definition);
                 $file = $this->handleSource($renditionInput->source, $workspace);
                 $rendition->setFile($file);
diff --git a/databox/api/src/Api/InputTransformer/AttributeInputTrait.php b/databox/api/src/Api/InputTransformer/AttributeInputTrait.php
index ce1a20046..f1e7262b4 100644
--- a/databox/api/src/Api/InputTransformer/AttributeInputTrait.php
+++ b/databox/api/src/Api/InputTransformer/AttributeInputTrait.php
@@ -75,7 +75,7 @@ protected function assignAttributes(
                         $attr = clone $attribute;
                         $attr->value = $value;
                         /** @var Attribute|TemplateAttribute $returnedAttribute */
-                        $returnedAttribute = $attributeInputProcessor->transform($attr, $returnedAttribute::class, $subContext);
+                        $returnedAttribute = $attributeInputProcessor->transform($attr, Attribute::class, $subContext);
                         $object->addAttribute($returnedAttribute);
                     }
 
@@ -85,7 +85,7 @@ protected function assignAttributes(
             }
 
             /** @var Attribute|TemplateAttribute $returnedAttribute */
-            $returnedAttribute = $attributeInputProcessor->transform($attribute, $attribute::class, $subContext);
+            $returnedAttribute = $attributeInputProcessor->transform($attribute, Attribute::class, $subContext);
             $object->addAttribute($returnedAttribute);
         }
     }
diff --git a/databox/api/src/Attribute/AttributeAssigner.php b/databox/api/src/Attribute/AttributeAssigner.php
index 078816e68..b77b82b2a 100644
--- a/databox/api/src/Attribute/AttributeAssigner.php
+++ b/databox/api/src/Attribute/AttributeAssigner.php
@@ -53,7 +53,7 @@ public function assignAttributeFromInput(AbstractBaseAttribute $attribute, Abstr
         $type = $this->attributeTypeRegistry->getStrictType($attribute->getDefinition()->getFieldType());
         $value = $type->normalizeValue($data->value);
 
-        $attribute->setValue($value);
+        $attribute->setValue($value ?? '');
         $attribute->setPosition($data->position ?? 0);
 
         return $attribute;
diff --git a/databox/api/src/Storage/RenditionManager.php b/databox/api/src/Storage/RenditionManager.php
index 93ce639a2..bd589e23f 100644
--- a/databox/api/src/Storage/RenditionManager.php
+++ b/databox/api/src/Storage/RenditionManager.php
@@ -131,6 +131,23 @@ public function getRenditionDefinitionByName(Workspace $workspace, string $name)
         return $definition;
     }
 
+    public function getRenditionDefinitionById(Workspace $workspace, string $id): RenditionDefinition
+    {
+        $definition = $this
+            ->em
+            ->getRepository(RenditionDefinition::class)
+            ->findOneBy([
+                'id' => $id,
+                'workspace' => $workspace->getId(),
+            ]);
+
+        if (!$definition instanceof RenditionDefinition) {
+            throw new \InvalidArgumentException(sprintf('Rendition definition "%s" not found', $id));
+        }
+
+        return $definition;
+    }
+
     public function resetAssetRenditions(Asset $asset): void
     {
         $renditions = $asset->getRenditions();
diff --git a/databox/indexer/package.json b/databox/indexer/package.json
index bacd3ae61..54404d177 100644
--- a/databox/indexer/package.json
+++ b/databox/indexer/package.json
@@ -18,6 +18,7 @@
   "scripts": {
     "start": "node --enable-source-maps dist/index.js",
     "console": "node --enable-source-maps dist/console.js",
+    "console:dev": "ts-node --files ./src/console.ts",
     "build": "rimraf ./dist && tsc",
     "start:dev": "nodemon",
     "test": "jest",
diff --git a/databox/indexer/src/databox/types.d.ts b/databox/indexer/src/databox/types.d.ts
index f0de4656c..1a416041a 100644
--- a/databox/indexer/src/databox/types.d.ts
+++ b/databox/indexer/src/databox/types.d.ts
@@ -43,7 +43,8 @@ export type AttributeInput = ({value: any} | {values: any[]}) & {
 }
 
 export type RenditionInput = {
-    definition: string;
+    definitionId?: string;
+    name?: string;
     source?: Source;
 }
 
diff --git a/databox/indexer/src/handlers/phraseanet/shared.ts b/databox/indexer/src/handlers/phraseanet/shared.ts
index ef4d11823..1dea2b6bf 100644
--- a/databox/indexer/src/handlers/phraseanet/shared.ts
+++ b/databox/indexer/src/handlers/phraseanet/shared.ts
@@ -40,7 +40,7 @@ export function createAsset(
             const ad = attrDefinitionIndex[c.meta_structure_id.toString()];
 
             const d = {
-                definition: `/attribute-definitions/${ad.id}`,
+                definitionId: ad.id,
                 origin: 'machine',
                 originVendor: 'indexer-import',
             } as Partial<AttributeInput>;
@@ -59,7 +59,7 @@ export function createAsset(
             }
 
             return {
-                definition: defName,
+                name: defName,
                 sourceFile: {
                     url: s.permalink.url,
                     isPrivate: false,