diff --git a/packages/taler-harness/src/harness/harness.ts b/packages/taler-harness/src/harness/harness.ts
index 65a19959a..c16200933 100644
--- a/packages/taler-harness/src/harness/harness.ts
+++ b/packages/taler-harness/src/harness/harness.ts
@@ -654,6 +654,9 @@ export class FakebankService
     return this.baseUrl;
   }
 
+  // FIXME: Why do we have this function at all?
+  // We now have a unified corebank API, we should just use that
+  // to create bank accounts, also for the exchange.
   async createExchangeAccount(
     accountName: string,
     password: string,
diff --git a/packages/taler-harness/src/integrationtests/test-timetravel-autorefresh.ts b/packages/taler-harness/src/integrationtests/test-timetravel-autorefresh.ts
index 449142809..def2462e0 100644
--- a/packages/taler-harness/src/integrationtests/test-timetravel-autorefresh.ts
+++ b/packages/taler-harness/src/integrationtests/test-timetravel-autorefresh.ts
@@ -136,20 +136,22 @@ export async function runTimetravelAutorefreshTest(t: GlobalTestState) {
     },
   );
 
-  await walletClient.call(WalletApiOperation.TestingWaitTransactionsFinal, {});
-
   let p: PendingOperationsResponse;
   p = await walletClient.call(WalletApiOperation.GetPendingOperations, {});
 
   console.log("pending operations after first time travel");
   console.log(JSON.stringify(p, undefined, 2));
 
-  await withdrawViaBankV2(t, {
+  await walletClient.call(WalletApiOperation.TestingWaitTasksProcessed, {});
+  await walletClient.call(WalletApiOperation.TestingWaitTransactionsFinal, {});
+
+  const wres2 = await withdrawViaBankV2(t, {
     walletClient,
     bank,
     exchange,
     amount: "TESTKUDOS:20",
   });
+  await wres2.withdrawalFinishedCond;
 
   await walletClient.call(WalletApiOperation.TestingWaitTransactionsFinal, {});
 
@@ -165,12 +167,13 @@ export async function runTimetravelAutorefreshTest(t: GlobalTestState) {
     },
   );
 
+  await walletClient.call(WalletApiOperation.TestingWaitTasksProcessed, {});
+  await walletClient.call(WalletApiOperation.TestingWaitTransactionsFinal, {});
+
   // At this point, the original coins should've been refreshed.
   // It would be too late to refresh them now, as we're past
   // the two year deposit expiration.
 
-  await walletClient.call(WalletApiOperation.TestingWaitTransactionsFinal, {});
-
   const orderResp = await merchantClient.createOrder({
     order: {
       fulfillment_url: "http://example.com",
@@ -195,7 +198,7 @@ export async function runTimetravelAutorefreshTest(t: GlobalTestState) {
   t.assertTrue(r.status === PreparePayResultType.PaymentPossible);
 
   const cpr = await walletClient.call(WalletApiOperation.ConfirmPay, {
-    proposalId: r.proposalId,
+    transactionId: r.transactionId,
   });
 
   t.assertTrue(cpr.type === ConfirmPayResultType.Done);
diff --git a/packages/taler-harness/src/integrationtests/test-withdrawal-fakebank.ts b/packages/taler-harness/src/integrationtests/test-withdrawal-fakebank.ts
index e3057451e..e26d9f964 100644
--- a/packages/taler-harness/src/integrationtests/test-withdrawal-fakebank.ts
+++ b/packages/taler-harness/src/integrationtests/test-withdrawal-fakebank.ts
@@ -55,12 +55,14 @@ export async function runWithdrawalFakebankTest(t: GlobalTestState) {
     accountName: "exchange",
     accountPassword: "x",
     wireGatewayApiBaseUrl: new URL(
-      "/accounts/exchange/taler-wire-gateway",
+      "/accounts/exchange/taler-wire-gateway/",
       bank.baseUrl,
     ).href,
     accountPaytoUri: "payto://x-taler-bank/localhost/exchange",
   });
 
+  await bank.createExchangeAccount("exchange", "x");
+
   await bank.start();
 
   await bank.pingUntilAvailable();
@@ -93,8 +95,6 @@ export async function runWithdrawalFakebankTest(t: GlobalTestState) {
 
   const balResp = await wallet.client.call(WalletApiOperation.GetBalances, {});
   t.assertAmountEquals("TESTKUDOS:9.72", balResp.balances[0].available);
-
-  await t.shutdown();
 }
 
 runWithdrawalFakebankTest.suites = ["wallet"];
diff --git a/packages/taler-util/src/taler-types.ts b/packages/taler-util/src/taler-types.ts
index 551b0652f..4b3a426f5 100644
--- a/packages/taler-util/src/taler-types.ts
+++ b/packages/taler-util/src/taler-types.ts
@@ -1585,7 +1585,7 @@ export const codecForWithdrawResponse = (): Codec<ExchangeWithdrawResponse> =>
     .property("ev_sig", codecForBlindedDenominationSignature())
     .build("WithdrawResponse");
 
-export const codecForWithdrawBatchResponse =
+export const codecForExchangeWithdrawBatchResponse =
   (): Codec<ExchangeWithdrawBatchResponse> =>
     buildCodecForObject<ExchangeWithdrawBatchResponse>()
       .property("ev_sigs", codecForList(codecForWithdrawResponse()))
diff --git a/packages/taler-wallet-core/src/dbless.ts b/packages/taler-wallet-core/src/dbless.ts
index 4fc890788..b6b80009f 100644
--- a/packages/taler-wallet-core/src/dbless.ts
+++ b/packages/taler-wallet-core/src/dbless.ts
@@ -49,6 +49,9 @@ import {
   Logger,
   parsePaytoUri,
   UnblindedSignature,
+  ExchangeBatchWithdrawRequest,
+  ExchangeWithdrawBatchResponse,
+  codecForExchangeWithdrawBatchResponse,
 } from "@gnu-taler/taler-util";
 import {
   HttpRequestLibrary,
@@ -165,25 +168,29 @@ export async function withdrawCoin(args: {
     value: Amounts.parseOrThrow(denom.value),
   });
 
-  const reqBody: ExchangeWithdrawRequest = {
-    denom_pub_hash: planchet.denomPubHash,
-    reserve_sig: planchet.withdrawSig,
-    coin_ev: planchet.coinEv,
+  const reqBody: ExchangeBatchWithdrawRequest = {
+    planchets: [
+      {
+        denom_pub_hash: planchet.denomPubHash,
+        reserve_sig: planchet.withdrawSig,
+        coin_ev: planchet.coinEv,
+      },
+    ],
   };
   const reqUrl = new URL(
-    `reserves/${planchet.reservePub}/withdraw`,
+    `reserves/${planchet.reservePub}/batch-withdraw`,
     exchangeBaseUrl,
   ).href;
 
-  const resp = await http.postJson(reqUrl, reqBody);
-  const r = await readSuccessResponseJsonOrThrow(
+  const resp = await http.fetch(reqUrl, { method: "POST", body: reqBody });
+  const rBatch = await readSuccessResponseJsonOrThrow(
     resp,
-    codecForWithdrawResponse(),
+    codecForExchangeWithdrawBatchResponse(),
   );
 
   const ubSig = await cryptoApi.unblindDenominationSignature({
     planchet,
-    evSig: r.ev_sig,
+    evSig: rBatch.ev_sigs[0].ev_sig,
   });
 
   return {
diff --git a/packages/taler-wallet-core/src/operations/pending.ts b/packages/taler-wallet-core/src/operations/pending.ts
index 1819aa1b8..7590280bc 100644
--- a/packages/taler-wallet-core/src/operations/pending.ts
+++ b/packages/taler-wallet-core/src/operations/pending.ts
@@ -101,14 +101,14 @@ async function gatherExchangePending(
       case ExchangeEntryDbUpdateStatus.Failed:
         return;
     }
-    const opTag = TaskIdentifiers.forExchangeUpdate(exch);
-    let opr = await tx.operationRetries.get(opTag);
+    const opUpdateExchangeTag = TaskIdentifiers.forExchangeUpdate(exch);
+    let opr = await tx.operationRetries.get(opUpdateExchangeTag);
     const timestampDue = opr?.retryInfo.nextRetry ?? exch.nextRefreshCheckStamp;
     resp.pendingOperations.push({
       type: PendingTaskType.ExchangeUpdate,
       ...getPendingCommon(
         ws,
-        opTag,
+        opUpdateExchangeTag,
         AbsoluteTime.fromPreciseTimestamp(timestampPreciseFromDb(timestampDue)),
       ),
       givesLifeness: false,
@@ -119,11 +119,12 @@ async function gatherExchangePending(
     // We only schedule a check for auto-refresh if the exchange update
     // was successful.
     if (!opr?.lastError) {
+      const opCheckRefreshTag = TaskIdentifiers.forExchangeCheckRefresh(exch);
       resp.pendingOperations.push({
         type: PendingTaskType.ExchangeCheckRefresh,
         ...getPendingCommon(
           ws,
-          opTag,
+          opCheckRefreshTag,
           AbsoluteTime.fromPreciseTimestamp(
             timestampPreciseFromDb(timestampDue),
           ),
diff --git a/packages/taler-wallet-core/src/operations/testing.ts b/packages/taler-wallet-core/src/operations/testing.ts
index 607d03470..f5bed13dd 100644
--- a/packages/taler-wallet-core/src/operations/testing.ts
+++ b/packages/taler-wallet-core/src/operations/testing.ts
@@ -74,6 +74,7 @@ import {
 import { initiatePeerPushDebit } from "./pay-peer-push-debit.js";
 import { OpenedPromise, openPromise } from "../index.js";
 import { getTransactionById, getTransactions } from "./transactions.js";
+import { getPendingOperations } from "./pending.js";
 
 const logger = new Logger("operations/testing.ts");
 
@@ -290,7 +291,7 @@ export async function runIntegrationTest(
     corebankApiBaseUrl: args.corebankApiBaseUrl,
     exchangeBaseUrl: args.exchangeBaseUrl,
   });
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
   logger.info("done withdrawing test balance");
 
   const balance = await getBalances(ws);
@@ -305,7 +306,7 @@ export async function runIntegrationTest(
   await makePayment(ws, myMerchant, args.amountToSpend, "hello world");
 
   // Wait until the refresh is done
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
 
   logger.trace("withdrawing test balance for refund");
   const withdrawAmountTwo = Amounts.parseOrThrow(`${currency}:18`);
@@ -320,7 +321,7 @@ export async function runIntegrationTest(
   });
 
   // Wait until the withdraw is done
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
 
   const { orderId: refundOrderId } = await makePayment(
     ws,
@@ -344,7 +345,7 @@ export async function runIntegrationTest(
   logger.trace("integration test: applied refund");
 
   // Wait until the refund is done
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
 
   logger.trace("integration test: making payment after refund");
 
@@ -357,12 +358,17 @@ export async function runIntegrationTest(
 
   logger.trace("integration test: make payment done");
 
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
 
   logger.trace("integration test: all done!");
 }
 
-export async function waitUntilDone(ws: InternalWalletState): Promise<void> {
+/**
+ * Wait until all transactions are in a final state.
+ */
+export async function waitUntilTransactionsFinal(
+  ws: InternalWalletState,
+): Promise<void> {
   logger.info("waiting until all transactions are in a final state");
   ws.ensureTaskLoopRunning();
   let p: OpenedPromise<void> | undefined = undefined;
@@ -410,6 +416,44 @@ export async function waitUntilDone(ws: InternalWalletState): Promise<void> {
   logger.info("done waiting until all transactions are in a final state");
 }
 
+/**
+ * Wait until pending work is processed.
+ */
+export async function waitUntilTasksProcessed(
+  ws: InternalWalletState,
+): Promise<void> {
+  logger.info("waiting until pending work is processed");
+  ws.ensureTaskLoopRunning();
+  let p: OpenedPromise<void> | undefined = undefined;
+  const cancelNotifs = ws.addNotificationListener((notif) => {
+    if (!p) {
+      return;
+    }
+    if (notif.type === NotificationType.PendingOperationProcessed) {
+      p.resolve();
+    }
+  });
+  while (1) {
+    p = openPromise();
+    const pendingTasksResp = await getPendingOperations(ws);
+    logger.info(`waiting on pending ops: ${j2s(pendingTasksResp)}`);
+    let finished = true;
+    for (const task of pendingTasksResp.pendingOperations) {
+      if (task.isDue) {
+        finished = false;
+      }
+      logger.info(`continuing waiting for task ${task.id}`);
+    }
+    if (finished) {
+      break;
+    }
+    // Wait until task is done
+    await p.promise;
+  }
+  logger.info("done waiting until pending work is processed");
+  cancelNotifs();
+}
+
 export async function waitUntilRefreshesDone(
   ws: InternalWalletState,
 ): Promise<void> {
@@ -463,7 +507,7 @@ export async function waitUntilRefreshesDone(
   logger.info("done waiting until all refreshes are in a final state");
 }
 
-async function waitUntilPendingReady(
+async function waitUntilTransactionPendingReady(
   ws: InternalWalletState,
   transactionId: string,
 ): Promise<void> {
@@ -560,7 +604,7 @@ export async function runIntegrationTest2(
     corebankApiBaseUrl: args.corebankApiBaseUrl,
     exchangeBaseUrl: args.exchangeBaseUrl,
   });
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
   logger.info("done withdrawing test balance");
 
   const balance = await getBalances(ws);
@@ -580,7 +624,7 @@ export async function runIntegrationTest2(
   );
 
   // Wait until the refresh is done
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
 
   logger.trace("withdrawing test balance for refund");
   const withdrawAmountTwo = Amounts.parseOrThrow(`${currency}:18`);
@@ -595,7 +639,7 @@ export async function runIntegrationTest2(
   });
 
   // Wait until the withdraw is done
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
 
   const { orderId: refundOrderId } = await makePayment(
     ws,
@@ -619,7 +663,7 @@ export async function runIntegrationTest2(
   logger.trace("integration test: applied refund");
 
   // Wait until the refund is done
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
 
   logger.trace("integration test: making payment after refund");
 
@@ -632,7 +676,7 @@ export async function runIntegrationTest2(
 
   logger.trace("integration test: make payment done");
 
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
 
   const peerPushInit = await initiatePeerPushDebit(ws, {
     partialContractTerms: {
@@ -647,7 +691,7 @@ export async function runIntegrationTest2(
     },
   });
 
-  await waitUntilPendingReady(ws, peerPushInit.transactionId);
+  await waitUntilTransactionPendingReady(ws, peerPushInit.transactionId);
 
   const peerPushCredit = await preparePeerPushCredit(ws, {
     talerUri: peerPushInit.talerUri,
@@ -670,7 +714,7 @@ export async function runIntegrationTest2(
     },
   });
 
-  await waitUntilPendingReady(ws, peerPullInit.transactionId);
+  await waitUntilTransactionPendingReady(ws, peerPullInit.transactionId);
 
   const peerPullInc = await preparePeerPullDebit(ws, {
     talerUri: peerPullInit.talerUri,
@@ -680,7 +724,7 @@ export async function runIntegrationTest2(
     peerPullDebitId: peerPullInc.peerPullDebitId,
   });
 
-  await waitUntilDone(ws);
+  await waitUntilTransactionsFinal(ws);
 
   logger.trace("integration test: all done!");
 }
diff --git a/packages/taler-wallet-core/src/operations/withdraw.ts b/packages/taler-wallet-core/src/operations/withdraw.ts
index 2c9c95d4c..5f728b6f5 100644
--- a/packages/taler-wallet-core/src/operations/withdraw.ts
+++ b/packages/taler-wallet-core/src/operations/withdraw.ts
@@ -33,7 +33,7 @@ import {
   codecForReserveStatus,
   codecForTalerConfigResponse,
   codecForWalletKycUuid,
-  codecForWithdrawBatchResponse,
+  codecForExchangeWithdrawBatchResponse,
   codecForWithdrawOperationStatusResponse,
   codecForWithdrawResponse,
   CoinStatus,
@@ -939,7 +939,7 @@ async function processPlanchetExchangeBatchRequest(
     }
     const r = await readSuccessResponseJsonOrThrow(
       resp,
-      codecForWithdrawBatchResponse(),
+      codecForExchangeWithdrawBatchResponse(),
     );
     return {
       coinIdxs: requestCoinIdxs,
diff --git a/packages/taler-wallet-core/src/wallet-api-types.ts b/packages/taler-wallet-core/src/wallet-api-types.ts
index fadc7aa7f..a8de9ac03 100644
--- a/packages/taler-wallet-core/src/wallet-api-types.ts
+++ b/packages/taler-wallet-core/src/wallet-api-types.ts
@@ -224,6 +224,7 @@ export enum WalletApiOperation {
   DeleteStoredBackup = "deleteStoredBackup",
   RecoverStoredBackup = "recoverStoredBackup",
   UpdateExchangeEntry = "updateExchangeEntry",
+  TestingWaitTasksProcessed = "testingWaitTasksProcessed",
 }
 
 // group: Initialization
@@ -1007,7 +1008,7 @@ export type TestingSetTimetravelOp = {
 /**
  * Wait until all transactions are in a final state.
  */
-export type TestingWaitTransactionsFinal = {
+export type TestingWaitTransactionsFinalOp = {
   op: WalletApiOperation.TestingWaitTransactionsFinal;
   request: EmptyObject;
   response: EmptyObject;
@@ -1016,12 +1017,21 @@ export type TestingWaitTransactionsFinal = {
 /**
  * Wait until all refresh transactions are in a final state.
  */
-export type TestingWaitRefreshesFinal = {
+export type TestingWaitRefreshesFinalOp = {
   op: WalletApiOperation.TestingWaitRefreshesFinal;
   request: EmptyObject;
   response: EmptyObject;
 };
 
+/**
+ * Wait until all tasks have been processed and the wallet is idle.
+ */
+export type TestingWaitTasksProcessedOp = {
+  op: WalletApiOperation.TestingWaitTasksProcessed;
+  request: EmptyObject;
+  response: EmptyObject;
+};
+
 /**
  * Wait until a transaction is in a particular state.
  */
@@ -1132,8 +1142,9 @@ export type WalletOperations = {
   [WalletApiOperation.Recycle]: RecycleOp;
   [WalletApiOperation.ApplyDevExperiment]: ApplyDevExperimentOp;
   [WalletApiOperation.ValidateIban]: ValidateIbanOp;
-  [WalletApiOperation.TestingWaitTransactionsFinal]: TestingWaitTransactionsFinal;
-  [WalletApiOperation.TestingWaitRefreshesFinal]: TestingWaitRefreshesFinal;
+  [WalletApiOperation.TestingWaitTransactionsFinal]: TestingWaitTransactionsFinalOp;
+  [WalletApiOperation.TestingWaitRefreshesFinal]: TestingWaitRefreshesFinalOp;
+  [WalletApiOperation.TestingWaitTasksProcessed]: TestingWaitTasksProcessedOp;
   [WalletApiOperation.TestingSetTimetravel]: TestingSetTimetravelOp;
   [WalletApiOperation.TestingWaitTransactionState]: TestingWaitTransactionStateOp;
   [WalletApiOperation.GetCurrencySpecification]: GetCurrencySpecificationOp;
diff --git a/packages/taler-wallet-core/src/wallet.ts b/packages/taler-wallet-core/src/wallet.ts
index a8c2895f8..06d9bb9e8 100644
--- a/packages/taler-wallet-core/src/wallet.ts
+++ b/packages/taler-wallet-core/src/wallet.ts
@@ -252,9 +252,10 @@ import {
   runIntegrationTest2,
   testPay,
   waitTransactionState,
-  waitUntilDone,
+  waitUntilTransactionsFinal,
   waitUntilRefreshesDone,
   withdrawTestBalance,
+  waitUntilTasksProcessed,
 } from "./operations/testing.js";
 import {
   acceptTip,
@@ -927,9 +928,9 @@ async function dumpCoins(ws: InternalWalletState): Promise<CoinDumpJson> {
           ageCommitmentProof: c.ageCommitmentProof,
           spend_allocation: c.spendAllocation
             ? {
-              amount: c.spendAllocation.amount,
-              id: c.spendAllocation.id,
-            }
+                amount: c.spendAllocation.amount,
+                id: c.spendAllocation.id,
+              }
             : undefined,
         });
       }
@@ -1427,6 +1428,10 @@ async function dispatchRequestInternal<Op extends WalletApiOperation>(
       await waitTransactionState(ws, req.transactionId, req.txState);
       return {};
     }
+    case WalletApiOperation.TestingWaitTasksProcessed: {
+      await waitUntilTasksProcessed(ws);
+      return {};
+    }
     case WalletApiOperation.GetCurrencySpecification: {
       // Ignore result, just validate in this mock implementation
       const req = codecForGetCurrencyInfoRequest().decode(payload);
@@ -1600,7 +1605,7 @@ async function dispatchRequestInternal<Op extends WalletApiOperation>(
       return getVersion(ws);
     }
     case WalletApiOperation.TestingWaitTransactionsFinal:
-      return await waitUntilDone(ws);
+      return await waitUntilTransactionsFinal(ws);
     case WalletApiOperation.TestingWaitRefreshesFinal:
       return await waitUntilRefreshesDone(ws);
     case WalletApiOperation.TestingSetTimetravel: {