diff --git a/backend/src/graphql/resolver/TransactionLinkResolver.ts b/backend/src/graphql/resolver/TransactionLinkResolver.ts
index 282e6662a..b3fe846f4 100644
--- a/backend/src/graphql/resolver/TransactionLinkResolver.ts
+++ b/backend/src/graphql/resolver/TransactionLinkResolver.ts
@@ -290,6 +290,19 @@ export class TransactionLinkResolver {
           await queryRunner.manager.update(DbContribution, { id: contribution.id }, contribution)
 
           await queryRunner.commitTransaction()
+
+          /* TODO not the right place, because its inside semaphore locks
+          // send transaction via dlt-connector
+          // notice: must be called after transaction are saved to db to contain also the id
+          // we use catch instead of await to prevent slow down of backend
+          // because iota pow calculation which can be use up several seconds
+          const dltConnector = DltConnectorClient.getInstance()
+          if (dltConnector) {
+            dltConnector.transmitTransaction(transaction).catch(() => {
+              logger.error('error on transmit creation transaction')
+            })
+          }
+*/
           await EVENT_CONTRIBUTION_LINK_REDEEM(
             user,
             transaction,