diff --git a/src/main/java/org/gcube/accounting/datamodel/BasicUsageRecord.java b/src/main/java/org/gcube/accounting/datamodel/BasicUsageRecord.java
index ebd694a..f9530ca 100644
--- a/src/main/java/org/gcube/accounting/datamodel/BasicUsageRecord.java
+++ b/src/main/java/org/gcube/accounting/datamodel/BasicUsageRecord.java
@@ -65,6 +65,8 @@ public abstract class BasicUsageRecord implements UsageRecord, Serializable {
 	protected static final String USAGE_RECORD_TYPE = "usageRecordType";
 	@RequiredField @NotEmpty
 	public static final String SCOPE = "scope";
+	
+	
 	@RequiredField @ValidOperationResult
 	public static final String OPERATION_RESULT = "operationResult";
 
diff --git a/src/main/java/org/gcube/accounting/persistence/Persistence.java b/src/main/java/org/gcube/accounting/persistence/Persistence.java
index ea34ce9..ce8c3f2 100644
--- a/src/main/java/org/gcube/accounting/persistence/Persistence.java
+++ b/src/main/java/org/gcube/accounting/persistence/Persistence.java
@@ -150,9 +150,7 @@ public abstract class Persistence {
 	
 	/**
 	 * Persist the {@link #UsageRecord}.
-	 * The Record is validated first, if validation fails an 
-	 * #InvalidValueException is thrown.
-	 * If validation success, the record is accounted in a separated thread. 
+	 * The Record is validated first, then accounted, in a separated thread. 
 	 * So that the program can continue the execution.
 	 * If the persistence fails the class write that the record in a local file
 	 * so that the {@link #UsageRecord} can be recorder later.
@@ -160,11 +158,11 @@ public abstract class Persistence {
 	 * @throws InvalidValueException if the Record Validation Fails
 	 */
 	public void account(final SingleUsageRecord usageRecord) throws InvalidValueException{
-		usageRecord.validate();
 		Runnable runnable = new Runnable(){
 			@Override
 			public void run(){
 				try {
+					usageRecord.validate();
 					persistence.accountWithFallback(usageRecord);
 				} catch (Exception e) {
 					logger.error("Error accouting UsageRecod", e.getCause());