diff --git a/src/main/java/org/gcube/datatransfer/resolver/services/CatalogueResolver.java b/src/main/java/org/gcube/datatransfer/resolver/services/CatalogueResolver.java
index dbd4ec6..64a3cef 100644
--- a/src/main/java/org/gcube/datatransfer/resolver/services/CatalogueResolver.java
+++ b/src/main/java/org/gcube/datatransfer/resolver/services/CatalogueResolver.java
@@ -119,7 +119,7 @@ public class CatalogueResolver {
 		}
 
 		if(fullScope==null)
-			ExceptionManager.throwWrongParameterException(req, "The scope '"+scope+"' does not matching any scope in the infrastructure. Is it valid?", this.getClass(), helpURI);
+			ExceptionManager.throwNotFoundException(req, "The scope '"+scope+"' does not matching any scope in the infrastructure. Is it valid?", this.getClass(), helpURI);
 
 		ResourceCatalogueCodes rc = ResourceCatalogueCodes.valueOfCodeValue(jsonRequest.getEntity_context());
 		if(rc==null){
diff --git a/src/main/java/org/gcube/datatransfer/resolver/services/StorageIDResolver.java b/src/main/java/org/gcube/datatransfer/resolver/services/StorageIDResolver.java
index 79d544c..f272a20 100644
--- a/src/main/java/org/gcube/datatransfer/resolver/services/StorageIDResolver.java
+++ b/src/main/java/org/gcube/datatransfer/resolver/services/StorageIDResolver.java
@@ -104,12 +104,12 @@ public class StorageIDResolver {
 			logger.info("Decoded ID"+" = "+ toSEID);
 		}catch(Exception e){
 			logger.error("Storage Client Exception when getting file from storage: ", e);
-			ExceptionManager.throwBadRequestException(httpRequest, "Storage Client Exception when getting file from storage with id: "+storageId, StorageIDResolver.class, help);
+			ExceptionManager.throwNotFoundException(httpRequest, "Storage Client Exception when getting file from storage with id: "+storageId, StorageIDResolver.class, help);
 		}
 
 		if(toSEID==null || toSEID.isEmpty()){
 			logger.error("Decrypted id for storageId: "+storageId +" is null or empty!");
-			ExceptionManager.throwWrongParameterException(httpRequest, "Error on decrypting the "+STORAGE_ID+ " '"+storageId+"'. Is it a valid id?", StorageIDResolver.class, help);
+			ExceptionManager.throwNotFoundException(httpRequest, "Error on decrypting the "+STORAGE_ID+ " '"+storageId+"'. Is it a valid id?", StorageIDResolver.class, help);
 		}
 
 		long size = iClient.getSize().RFileById(toSEID);
@@ -205,7 +205,7 @@ public class StorageIDResolver {
 
 		if(toSEID==null || toSEID.isEmpty()){
 			logger.error("Decrypted id for storageId: "+storageId +" is null or empty!");
-			ExceptionManager.throwWrongParameterException(httpRequest, "Error on decrypting the "+STORAGE_ID+ " '"+storageId+"'. Is it a valid id?", StorageIDResolver.class, help);
+			ExceptionManager.throwNotFoundException(httpRequest, "Error on decrypting the "+STORAGE_ID+ " '"+storageId+"'. Is it a valid id?", StorageIDResolver.class, help);
 		}
 
 
diff --git a/src/main/java/org/gcube/datatransfer/resolver/services/error/ExceptionManager.java b/src/main/java/org/gcube/datatransfer/resolver/services/error/ExceptionManager.java
index ca39fa6..3985b0d 100644
--- a/src/main/java/org/gcube/datatransfer/resolver/services/error/ExceptionManager.java
+++ b/src/main/java/org/gcube/datatransfer/resolver/services/error/ExceptionManager.java
@@ -52,7 +52,7 @@ public class ExceptionManager {
 	public static void throwBadRequestException(HttpServletRequest httpRequest, String errorMessage, Class thrownBy, String helpURI){
 
 		URI theURI = checkURI(helpURI);
-		throw new BadRequestException(httpRequest, Status.NOT_ACCEPTABLE, errorMessage, thrownBy, theURI);
+		throw new BadRequestException(httpRequest, Status.BAD_REQUEST, errorMessage, thrownBy, theURI);
 
 	}