diff --git a/backend/src/apis/dltConnector/enum/DltTransactionType.ts b/backend/src/apis/dltConnector/enum/DltTransactionType.ts
index 80e12daa5..ce1044a7a 100644
--- a/backend/src/apis/dltConnector/enum/DltTransactionType.ts
+++ b/backend/src/apis/dltConnector/enum/DltTransactionType.ts
@@ -1,4 +1,5 @@
 export enum DltTransactionType {
+  UNKNOWN = 0,
   REGISTER_ADDRESS = 1,
   CREATION = 2,
   TRANSFER = 3,
diff --git a/backend/src/apis/dltConnector/interaction/transactionToDlt/TransactionToDlt.role.ts b/backend/src/apis/dltConnector/interaction/transactionToDlt/TransactionToDlt.role.ts
index eb6658835..de96d38cc 100644
--- a/backend/src/apis/dltConnector/interaction/transactionToDlt/TransactionToDlt.role.ts
+++ b/backend/src/apis/dltConnector/interaction/transactionToDlt/TransactionToDlt.role.ts
@@ -48,15 +48,6 @@ export class TransactionToDltRole extends AbstractTransactionToDltRole<Transacti
     const draft = new TransactionDraft()
     draft.amount = this.self.amount.abs().toString()
 
-    if (
-      !this.self.linkedUserGradidoID ||
-      !this.self.linkedUserCommunityUuid ||
-      !this.self.userCommunityUuid
-    ) {
-      throw new LogError(
-        `missing necessary field in transaction: ${this.self.id}, need linkedUserGradidoID, linkedUserCommunityUuid and userCommunityUuid`,
-      )
-    }
     switch (this.self.typeId as TransactionTypeId) {
       case TransactionTypeId.CREATION:
         draft.type = TransactionType.GRADIDO_CREATION
@@ -68,8 +59,18 @@ export class TransactionToDltRole extends AbstractTransactionToDltRole<Transacti
         this.type = DltTransactionType.TRANSFER
         break
       default:
+        this.type = DltTransactionType.UNKNOWN
         throw new LogError('wrong role for type', this.self.typeId as TransactionTypeId)
     }
+    if (
+      !this.self.linkedUserGradidoID ||
+      !this.self.linkedUserCommunityUuid ||
+      !this.self.userCommunityUuid
+    ) {
+      throw new LogError(
+        `missing necessary field in transaction: ${this.self.id}, need linkedUserGradidoID, linkedUserCommunityUuid and userCommunityUuid`,
+      )
+    }
     // it is a redeem of a transaction link?
     const transactionLink = this.self.transactionLink
     if (transactionLink) {
@@ -77,6 +78,7 @@ export class TransactionToDltRole extends AbstractTransactionToDltRole<Transacti
         this.self.userCommunityUuid,
         new IdentifierSeed(transactionLink.code),
       )
+      draft.type = TransactionType.GRADIDO_REDEEM_DEFERRED_TRANSFER
       this.type = DltTransactionType.REDEEM_DEFERRED_TRANSFER
     } else {
       draft.user = new UserIdentifier(
diff --git a/backend/src/apis/dltConnector/interaction/transactionToDlt/transactionToDlt.context.ts b/backend/src/apis/dltConnector/interaction/transactionToDlt/transactionToDlt.context.ts
index bd49c8400..febb3b5ae 100644
--- a/backend/src/apis/dltConnector/interaction/transactionToDlt/transactionToDlt.context.ts
+++ b/backend/src/apis/dltConnector/interaction/transactionToDlt/transactionToDlt.context.ts
@@ -3,6 +3,7 @@ import { TransactionLink } from '@entity/TransactionLink'
 import { User } from '@entity/User'
 
 import { DltConnectorClient } from '@/apis/dltConnector/DltConnectorClient'
+import { TransactionResult } from '@/apis/dltConnector/model/TransactionResult'
 import { backendLogger as logger } from '@/server/logger'
 
 import { AbstractTransactionToDltRole } from './AbstractTransactionToDlt.role'
@@ -41,10 +42,18 @@ export async function transactionToDlt(dltConnector: DltConnectorClient): Promis
     }
     let messageId = ''
     let error: string | null = null
-
-    const result = await dltConnector.sendTransaction(
-      pendingTransactionRole.convertToGraphqlInput(),
-    )
+    let result: TransactionResult | undefined
+    try {
+      result = await dltConnector.sendTransaction(pendingTransactionRole.convertToGraphqlInput())
+    } catch (e) {
+      if (e instanceof Error) {
+        error = e.message
+      } else if (typeof e === 'string') {
+        error = e
+      } else {
+        throw e
+      }
+    }
     if (result?.succeed && result.recipe) {
       messageId = result.recipe.messageIdHex
     } else if (result?.error) {
diff --git a/backend/src/apis/dltConnector/sendTransactionsToDltConnector.ts b/backend/src/apis/dltConnector/sendTransactionsToDltConnector.ts
index 98bbde864..73dd6cbab 100644
--- a/backend/src/apis/dltConnector/sendTransactionsToDltConnector.ts
+++ b/backend/src/apis/dltConnector/sendTransactionsToDltConnector.ts
@@ -1,4 +1,6 @@
 // eslint-disable-next-line import/no-extraneous-dependencies
+import { CONFIG } from '@/config'
+import { backendLogger as logger } from '@/server/logger'
 import { TypeORMError } from '@dbTools/typeorm'
 // eslint-disable-next-line import/named, n/no-extraneous-import
 import { FetchError } from 'node-fetch'
@@ -6,7 +8,6 @@ import { FetchError } from 'node-fetch'
 import { DltConnectorClient } from '@dltConnector/DltConnectorClient'
 
 import { LogError } from '@/server/LogError'
-import { backendLogger as logger } from '@/server/logger'
 import {
   InterruptiveSleepManager,
   TRANSMIT_TO_IOTA_INTERRUPTIVE_SLEEP_KEY,
@@ -40,7 +41,9 @@ export async function sendTransactionsToDltConnector(): Promise<void> {
       await transactionToDlt(dltConnector)
       await InterruptiveSleepManager.getInstance().sleep(
         TRANSMIT_TO_IOTA_INTERRUPTIVE_SLEEP_KEY,
-        1000,
+        // TODO: put sleep time into config, because it influence performance,
+        // transactionToDlt call 4 db queries to look for new transactions
+        CONFIG.PRODUCTION ? 100000 : 1000,
       )
     } catch (e) {
       // couldn't connect to dlt-connector? We wait
diff --git a/database/migrations/0088-merge_dlt_tables.ts b/database/migrations/0088-merge_dlt_tables.ts
index ab3db11eb..70ee2d49e 100644
--- a/database/migrations/0088-merge_dlt_tables.ts
+++ b/database/migrations/0088-merge_dlt_tables.ts
@@ -7,7 +7,7 @@ export async function upgrade(queryFn: (query: string, values?: any[]) => Promis
     ALTER TABLE \`dlt_transactions\`
     CHANGE \`transaction_id\` \`transaction_id\` INT(10) UNSIGNED NULL DEFAULT NULL,
     ADD \`user_id\` INT UNSIGNED NULL DEFAULT NULL AFTER \`transaction_id\`,
-    ADD \`transaction_link_id\` INT UNSIGNED NULL DEFAULT NULL AFTER \`user_id\`
+    ADD \`transaction_link_id\` INT UNSIGNED NULL DEFAULT NULL AFTER \`user_id\`,
     ADD \`type_id\` INT UNSIGNED NOT NULL AFTER \`transaction_link_id\`
     ;
   `)
diff --git a/dlt-connector/src/interactions/sendToIota/DeferredTransferTransaction.role.ts b/dlt-connector/src/interactions/sendToIota/DeferredTransferTransaction.role.ts
index 19b4dc649..90783723e 100644
--- a/dlt-connector/src/interactions/sendToIota/DeferredTransferTransaction.role.ts
+++ b/dlt-connector/src/interactions/sendToIota/DeferredTransferTransaction.role.ts
@@ -1,5 +1,6 @@
 import {
   AuthenticatedEncryption,
+  DurationSeconds,
   EncryptedMemo,
   GradidoTransactionBuilder,
   GradidoTransfer,
@@ -74,11 +75,13 @@ export class DeferredTransferTransactionRole extends AbstractTransactionRole {
         new GradidoTransfer(
           new TransferAmount(
             senderKeyPair.getPublicKey(),
-            GradidoUnit.fromString(this.self.amount),
+            GradidoUnit.fromString(this.self.amount).calculateCompoundInterest(
+              this.self.timeoutDuration,
+            ),
           ),
           recipientKeyPair.getPublicKey(),
         ),
-        this.self.timeoutDuration,
+        new DurationSeconds(this.self.timeoutDuration),
       )
       .sign(senderKeyPair)
     return builder
diff --git a/dlt-connector/src/interactions/sendToIota/RedeemDeferredTransferTransaction.role.ts b/dlt-connector/src/interactions/sendToIota/RedeemDeferredTransferTransaction.role.ts
index eb858c322..ae9115485 100644
--- a/dlt-connector/src/interactions/sendToIota/RedeemDeferredTransferTransaction.role.ts
+++ b/dlt-connector/src/interactions/sendToIota/RedeemDeferredTransferTransaction.role.ts
@@ -75,10 +75,8 @@ export class RedeemDeferredTransferTransactionRole extends AbstractTransactionRo
     }
     const recipientKeyPair = await KeyPairCalculation(new KeyPairIdentifier(this.linkedUser))
 
-    // TODO: fix getMemos in gradido-blockchain-js to return correct data
     builder
       .setCreatedAt(new Date(this.self.createdAt))
-      .addMemo(deferredTransferBody.getMemos()[0])
       .setRedeemDeferredTransfer(
         deferredTransfer.getId(),
         new GradidoTransfer(
@@ -89,6 +87,10 @@ export class RedeemDeferredTransferTransactionRole extends AbstractTransactionRo
           recipientKeyPair.getPublicKey(),
         ),
       )
+    const memos = deferredTransferBody.getMemos()
+    for (let i = 0; i < memos.size(); i++) {
+      builder.addMemo(memos.get(i))
+    }
     const senderCommunity = this.self.user.communityUuid
     const recipientCommunity = this.linkedUser.communityUuid
     if (senderCommunity !== recipientCommunity) {