diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/controller/admin/CreditController.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/controller/admin/CreditController.java
index a794f8392..bfb55ccbc 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/controller/admin/CreditController.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/controller/admin/CreditController.java
@@ -6,8 +6,10 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import org.jeecg.common.api.vo.Result;
 import org.jeecg.common.system.query.QueryGenerator;
+import org.jeecg.modules.business.entity.Client;
 import org.jeecg.modules.business.entity.Credit;
 import org.jeecg.modules.business.service.IBalanceService;
+import org.jeecg.modules.business.service.IClientService;
 import org.jeecg.modules.business.service.ICreditService;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
@@ -40,6 +42,8 @@ public class CreditController extends JeecgController<Credit, ICreditService> {
 	private ICreditService creditService;
 	@Autowired
 	private IBalanceService balanceService;
+	@Autowired
+	private IClientService clientService;
 	
 	/**
 	 * 分页列表查询
@@ -74,7 +78,13 @@ public class CreditController extends JeecgController<Credit, ICreditService> {
 	@PostMapping(value = "/add")
 	public Result<String> add(@RequestBody Credit credit) {
 		creditService.save(credit);
-		balanceService.updateBalance(credit.getClientId(), credit.getId(), credit.getAmount(), credit.getCurrencyId());
+		try {
+			balanceService.updateBalance(credit.getClientId(), credit.getId(), credit.getAmount(), credit.getCurrencyId());
+		}
+		catch (RuntimeException e) {
+			Client client = clientService.getById(credit.getClientId());
+			return Result.error("Error while updating " + client.fullName() + "'s balance  : " + e.getMessage());
+		}
 		return Result.OK("sys.api.entryAddSuccess");
 	}
 	
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/controller/client/TransactionController.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/controller/client/TransactionController.java
index 236a25b85..42416eae4 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/controller/client/TransactionController.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/controller/client/TransactionController.java
@@ -92,44 +92,67 @@ public class TransactionController {
     public Result<?> debit(@RequestParam("clientId") String clientId, @RequestParam("currency") String currency) {
         List<String> errorMessages = new ArrayList<>();
         List<String> shopIds = shopService.listIdByClient(clientId);
-        List<PlatformOrder> orders = platformOrderService.findUninvoicedShippingOrdersByShopForClient(shopIds, Arrays.asList(1,2,3));
-        if(orders.isEmpty())
-            return Result.OK("No order to invoice.");
-        Date startDate = orders.stream().map(PlatformOrder::getOrderTime).min(Date::compareTo).get();
-        Date endDate = orders.stream().map(PlatformOrder::getOrderTime).max(Date::compareTo).get();
-        List<String> orderIds = orders.stream().map(PlatformOrder::getId).collect(Collectors.toList());
-        log.info("{} Orders to be estimated", orderIds.size());
-        ShippingInvoiceFactory factory = new ShippingInvoiceFactory(
-                platformOrderService, clientMapper, shopMapper, logisticChannelMapper, logisticChannelPriceMapper,
-                platformOrderContentService, skuDeclaredValueService, countryService, exchangeRatesMapper,
-                purchaseOrderService, purchaseOrderContentMapper, skuPromotionHistoryMapper, savRefundService, savRefundWithDetailService, emailService, env);
-        List<ShippingFeesEstimation> shippingFeesEstimations = factory.getEstimations(clientId, orderIds, errorMessages);
-        if(shippingFeesEstimations.isEmpty())
-            return Result.OK("No estimation found.");
-        // purchase estimation
-        List<String> estimationOrderIds = new ArrayList<>();
+        List<PlatformOrder> shippingOrders = platformOrderService.findUninvoicedShippingOrdersByShopForClient(shopIds, Arrays.asList(1,2,3));
+        Date startDate = null;
+        Date endDate = null;
+        List<ShippingFeesEstimation> shippingFeesEstimations;
         BigDecimal shippingFeesEstimation = BigDecimal.ZERO;
-        for(ShippingFeesEstimation estimation: shippingFeesEstimations) {
-            estimationOrderIds.addAll(estimation.getOrderIds());
-            shippingFeesEstimation = shippingFeesEstimation.add(estimation.getDueForProcessedOrders());
+        if(!shippingOrders.isEmpty()) {
+            startDate = shippingOrders.stream().map(PlatformOrder::getOrderTime).min(Date::compareTo).get();
+            endDate = shippingOrders.stream().map(PlatformOrder::getOrderTime).max(Date::compareTo).get();
+            List<String> shippingOrderIds = shippingOrders.stream().map(PlatformOrder::getId).collect(Collectors.toList());
+            log.info("Estimating shipping fees for {}", shippingOrderIds.size());
+            ShippingInvoiceFactory factory = new ShippingInvoiceFactory(
+                    platformOrderService, clientMapper, shopMapper, logisticChannelMapper, logisticChannelPriceMapper,
+                    platformOrderContentService, skuDeclaredValueService, countryService, exchangeRatesMapper,
+                    purchaseOrderService, purchaseOrderContentMapper, skuPromotionHistoryMapper, savRefundService, savRefundWithDetailService, emailService, env);
+            shippingFeesEstimations = factory.getEstimations(clientId, shippingOrderIds, errorMessages);
+            for (ShippingFeesEstimation estimation : shippingFeesEstimations) {
+                shippingFeesEstimation = shippingFeesEstimation.add(estimation.getDueForProcessedOrders());
+            }
         }
-        List<PlatformOrderContent> orderContents = platformOrderContentMapper.fetchOrderContent(estimationOrderIds);
-        List<String> skuIds = orderContents.stream().map(PlatformOrderContent::getSkuId).collect(Collectors.toList());
-        List<SkuPrice> skuPrices = platformOrderContentMapper.searchSkuPrice(skuIds);
-        BigDecimal exchangeRateEurToRmb = exchangeRatesMapper.getLatestExchangeRate("EUR", "RMB");
+
+        // purchase estimation
+        List<PlatformOrder> purchaseOrders = platformOrderService.fetchUninvoicedPurchaseOrdersByShopForClient(shopIds, Arrays.asList(1,2,3));
         BigDecimal purchaseEstimation = BigDecimal.ZERO;
-        boolean isCompleteInvoiceReady = true;
-        if(skuPrices.size() != skuIds.size()) {
-            isCompleteInvoiceReady = false;
-            errorMessages.add("Some sku prices are missing.");
+
+        if(shippingOrders.isEmpty() && purchaseOrders.isEmpty()) {
+            return Result.OK("No order to invoice.");
         }
-        for(PlatformOrderContent content : orderContents){
-            for (SkuPrice skuPrice : skuPrices) {
-                if(content.getSkuId().equals(skuPrice.getSkuId())) {
-                    purchaseEstimation = purchaseEstimation.add(skuPrice.getPrice(content.getQuantity(), exchangeRateEurToRmb));
+
+        boolean isCompleteInvoiceReady = true;
+        if(!purchaseOrders.isEmpty()) {
+            Date purchaseStartDate = purchaseOrders.stream().map(PlatformOrder::getOrderTime).min(Date::compareTo).get();
+            Date purchaseEndDate = purchaseOrders.stream().map(PlatformOrder::getOrderTime).max(Date::compareTo).get();
+            if(startDate == null)
+                startDate = purchaseStartDate;
+            else
+                startDate = startDate.before(purchaseStartDate) ? startDate : purchaseStartDate;
+            if(endDate == null)
+                endDate = purchaseEndDate;
+            else
+                endDate = endDate.after(purchaseEndDate) ? endDate : purchaseEndDate;
+
+            List<String> purchaseOrderIds = purchaseOrders.stream().map(PlatformOrder::getId).collect(Collectors.toList());
+            List<PlatformOrderContent> orderContents = platformOrderContentMapper.fetchOrderContent(purchaseOrderIds);
+            List<String> skuIds = orderContents.stream().map(PlatformOrderContent::getSkuId).collect(Collectors.toList());
+            List<SkuPrice> skuPrices = platformOrderContentMapper.searchSkuPrice(skuIds);
+            BigDecimal exchangeRateEurToRmb = exchangeRatesMapper.getLatestExchangeRate("EUR", "RMB");
+            if (skuPrices.size() != skuIds.size()) {
+                isCompleteInvoiceReady = false;
+                errorMessages.add("Some sku prices are missing.");
+            }
+            for (PlatformOrderContent content : orderContents) {
+                for (SkuPrice skuPrice : skuPrices) {
+                    if (content.getSkuId().equals(skuPrice.getSkuId())) {
+                        purchaseEstimation = purchaseEstimation.add(skuPrice.getPrice(content.getQuantity(), exchangeRateEurToRmb));
+                    }
                 }
             }
         }
+        if(shippingFeesEstimation.compareTo(BigDecimal.ZERO) == 0 && purchaseEstimation.compareTo(BigDecimal.ZERO) == 0) {
+            return Result.OK("No estimation found.");
+        }
         if(!currency.equals("EUR")) {
             BigDecimal exchangeRate = exchangeRatesMapper.getLatestExchangeRate("EUR", currency);
 
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/mapper/PlatformOrderMapper.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/mapper/PlatformOrderMapper.java
index 153bdb06d..5188ccce8 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/mapper/PlatformOrderMapper.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/mapper/PlatformOrderMapper.java
@@ -186,6 +186,7 @@ public interface PlatformOrderMapper extends BaseMapper<PlatformOrder> {
     void cancelBatchInvoice(@Param("invoiceNumbers") List<String> invoiceNumbers);
 
     List<PlatformOrder> findUninvoicedShippingOrdersByShopForClient(@Param("shopIds") List<String> shopIds, @Param("erpStatuses") List<Integer> erpStatuses);
+    List<PlatformOrder> fetchUninvoicedPurchaseOrdersByShopForClient(@Param("shopIds") List<String> shopIds, @Param("erpStatuses") List<Integer> erpStatuses);
     List<PlatformOrder> findUninvoicedOrdersByShopForClient(@Param("shopIds") List<String> shopIds, @Param("erpStatuses") List<Integer> erpStatuses);
     List<String> findUninvoicedOrderIdsByShopForClient(@Param("shopIds") List<String> shopIds, @Param("erpStatuses") List<Integer> erpStatuses);
 
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/mapper/xml/PlatformOrderMapper.xml b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/mapper/xml/PlatformOrderMapper.xml
index f0ad180d0..c8d92c9ba 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/mapper/xml/PlatformOrderMapper.xml
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/mapper/xml/PlatformOrderMapper.xml
@@ -575,6 +575,37 @@
             #{shopId}
         </foreach>;
     </select>
+    <select id="fetchUninvoicedPurchaseOrdersByShopForClient" resultType="org.jeecg.modules.business.entity.PlatformOrder">
+        SELECT *
+        FROM platform_order
+        WHERE IF(shipping_invoice_number IS NOT NULL, shipping_invoice_number LIKE '%%%%-%%-2%%%',
+            shipping_invoice_number IS NULL)
+        AND purchase_invoice_number IS NULL
+        AND product_available = 0
+        AND virtual_product_available = 0
+        AND erp_status IN
+            <foreach
+                    collection="erpStatuses"
+                    separator=","
+                    open="("
+                    close=")"
+                    index="index"
+                    item="erpStatus"
+            >
+                #{erpStatus}
+            </foreach>
+        AND shop_id IN
+            <foreach
+                    collection="shopIds"
+                    separator=","
+                    open="("
+                    close=")"
+                    index="index"
+                    item="shopId"
+            >
+                #{shopId}
+            </foreach>;
+    </select>
     <select id="findUninvoicedOrdersByShopForClient" resultType="org.jeecg.modules.business.entity.PlatformOrder">
         SELECT *
         FROM platform_order
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/IPlatformOrderService.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/IPlatformOrderService.java
index 7f38de0e7..1db346af1 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/IPlatformOrderService.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/IPlatformOrderService.java
@@ -187,6 +187,14 @@ public interface IPlatformOrderService extends IService<PlatformOrder> {
      */
     List<PlatformOrder> findUninvoicedShippingOrdersByShopForClient(List<String> shopIds, List<Integer> erpStatuses);
 
+    /**
+     * Find all orders that can be invoiced (purchase only).
+     * @param shopIds
+     * @param erpStatuses
+     * @return
+     */
+    List<PlatformOrder> fetchUninvoicedPurchaseOrdersByShopForClient(List<String> shopIds, List<Integer> erpStatuses);
+
     /**
      * Find all order that can be invoiced (shipping and purchase).
      * @param shopIds
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/impl/BalanceServiceImpl.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/impl/BalanceServiceImpl.java
index 366e194ab..9a9d789d6 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/impl/BalanceServiceImpl.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/impl/BalanceServiceImpl.java
@@ -67,6 +67,10 @@ public class BalanceServiceImpl extends ServiceImpl<BalanceMapper, Balance> impl
     public void updateBalance(String clientId, String CreditId, BigDecimal amount, String currencyId) {
         String currency = currencyService.getCodeById(currencyId);
         BigDecimal previousBalance = getBalanceByClientIdAndCurrency(clientId, currency);
+
+        if(previousBalance == null) {
+            throw new RuntimeException("Please initialize balance first !");
+        }
         BigDecimal currentBalance = previousBalance.add(amount);
         SysUser sysUser = new SysUser();
         Balance balance = Balance.of(sysUser.getUsername(), clientId, currencyId, Balance.OperationType.Credit.name(), CreditId, currentBalance);
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/impl/PlatformOrderServiceImpl.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/impl/PlatformOrderServiceImpl.java
index 61edab317..0d1651174 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/impl/PlatformOrderServiceImpl.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/business/service/impl/PlatformOrderServiceImpl.java
@@ -404,6 +404,11 @@ public class PlatformOrderServiceImpl extends ServiceImpl<PlatformOrderMapper, P
         return platformOrderMap.findUninvoicedShippingOrdersByShopForClient(shopIds, erpStatuses);
     }
 
+    @Override
+    public List<PlatformOrder> fetchUninvoicedPurchaseOrdersByShopForClient(List<String> shopIds, List<Integer> erpStatuses) {
+        return platformOrderMap.fetchUninvoicedPurchaseOrdersByShopForClient(shopIds, erpStatuses);
+    }
+
     @Override
     public List<PlatformOrder> findUninvoicedOrdersByShopForClient(List<String> shopIds, List<Integer> erpStatuses) {
         return platformOrderMap.findUninvoicedOrdersByShopForClient(shopIds, erpStatuses);