diff --git a/packages/crm-service/src/lexware/interfaces/lexware-api.interfaces.ts b/packages/crm-service/src/lexware/interfaces/lexware-api.interfaces.ts
index 715d516..c7245a1 100644
--- a/packages/crm-service/src/lexware/interfaces/lexware-api.interfaces.ts
+++ b/packages/crm-service/src/lexware/interfaces/lexware-api.interfaces.ts
@@ -101,15 +101,20 @@ export interface LexwareContactCreateResponse {
 // --------------------------------------------------------
 
 export interface LexwareVoucherListItem {
-  voucherId: string;
+  id: string;
   voucherType: string;
   voucherNumber: string;
   voucherDate: string;
   voucherStatus: string;
   totalAmount: number;
+  openAmount?: number;
   currency: string;
   contactId?: string;
   contactName?: string;
+  dueDate?: string;
+  createdDate?: string;
+  updatedDate?: string;
+  archived?: boolean;
 }
 
 export interface LexwareVoucherListResponse {
diff --git a/packages/crm-service/src/lexware/lexware-vouchers.service.ts b/packages/crm-service/src/lexware/lexware-vouchers.service.ts
index a0fe278..a6cdadc 100644
--- a/packages/crm-service/src/lexware/lexware-vouchers.service.ts
+++ b/packages/crm-service/src/lexware/lexware-vouchers.service.ts
@@ -78,7 +78,7 @@ export class LexwareVouchersService {
             const endpoint = voucherTypeToLexwareEndpoint(crmVoucherType);
             const detail =
               await this.lexwareClient.get<LexwareVoucherDetail>(
-                `/v1/${endpoint}/${item.voucherId}`,
+                `/v1/${endpoint}/${item.id}`,
               );
 
             const cacheData = voucherDetailToCacheData(
@@ -92,12 +92,12 @@ export class LexwareVouchersService {
               where: {
                 tenantId_lexwareVoucherId: {
                   tenantId,
-                  lexwareVoucherId: item.voucherId,
+                  lexwareVoucherId: item.id,
                 },
               },
               create: {
                 tenantId,
-                lexwareVoucherId: item.voucherId,
+                lexwareVoucherId: item.id,
                 ...cacheData,
                 companyId: companyId || undefined,
                 contactId: contactId || undefined,
@@ -114,7 +114,7 @@ export class LexwareVouchersService {
             totalUpserted++;
           } catch (error) {
             this.logger.warn(
-              `Fehler beim Laden von Beleg ${item.voucherId}: ${error instanceof Error ? error.message : 'Unbekannt'}`,
+              `Fehler beim Laden von Beleg ${item.id}: ${error instanceof Error ? error.message : 'Unbekannt'}`,
             );
           }
         }