diff --git a/pages/createDocument/edit/[[id]].vue b/pages/createDocument/edit/[[id]].vue
index d93a123..b5e7caf 100644
--- a/pages/createDocument/edit/[[id]].vue
+++ b/pages/createDocument/edit/[[id]].vue
@@ -74,6 +74,7 @@ const servicecategories = ref([])
 const selectedServicecategorie = ref(null)
 const customers = ref([])
 const contacts = ref([])
+const contracts = ref([])
 const texttemplates = ref([])
 const units = ref([])
 const tenantUsers = ref([])
@@ -89,6 +90,7 @@ const setupData = async () => {
   productcategories.value = await useEntities("productcategories").select("*")
   customers.value = await useEntities("customers").select("*", "customerNumber")
   contacts.value = await useEntities("contacts").select("*")
+  contracts.value = await useEntities("contracts").select("*")
   texttemplates.value = await useEntities("texttemplates").select("*")
   units.value = await useEntities("units").selectSpecial("*")
   tenantUsers.value = (await useNuxtApp().$api(`/api/tenant/users`, {
@@ -1158,6 +1160,10 @@ const getDocumentData = async () => {
       ...itemInfo.value.project ? [{
         label: "Projekt",
         content: projects.value.find(i => i.id === itemInfo.value.project).name
+      }] : [],
+      ...itemInfo.value.contract ? [{
+        label: "Vertrag",
+        content: contracts.value.find(i => i.id === itemInfo.value.contract).contractNumber
       }] : []
     ],
     title: itemInfo.value.title,
@@ -1259,6 +1265,7 @@ const saveSerialInvoice = async () => {
     state: 'Erstellt',
     customer: itemInfo.value.customer,
     contact: itemInfo.value.contact,
+    contract: itemInfo.value.contract,
     address: itemInfo.value.address,
     project: itemInfo.value.project,
     paymentDays: itemInfo.value.paymentDays,
@@ -1342,6 +1349,7 @@ const saveDocument = async (state, resetup = false) => {
     state: itemInfo.value.state || "Entwurf",
     customer: itemInfo.value.customer,
     contact: itemInfo.value.contact,
+    contract: itemInfo.value.contract,
     address: itemInfo.value.address,
     project: itemInfo.value.project,
     plant: itemInfo.value.plant,
@@ -2097,6 +2105,45 @@ const setRowData = async (row, service = {sellingPriceComposed: {}}, product = {
                 </InputGroup>
 
               </UFormGroup>
+              <UFormGroup
+                  label="Vertrag:"
+              >
+                <InputGroup>
+                  <USelectMenu
+                      :options="contracts.filter(i => i.customer === itemInfo.customer && (itemInfo.plant ? itemInfo.plant === i.plant : true))"
+                      v-model="itemInfo.contract"
+                      value-attribute="id"
+                      option-attribute="name"
+                      searchable
+                      searchable-placeholder="Suche..."
+                      :search-attributes="['contractNumber','name']"
+                      class="w-full"
+                      :disabled="!itemInfo.customer"
+                  >
+                    <template #label>
+                      {{ itemInfo.contract ? contracts.find(i => i.id === itemInfo.contract).name : "Kein Vertrag ausgewählt" }}
+                    </template>
+                    <template #option="{option: contract}">
+                      {{ customers.find(i => i.id === contract.customer) ? customers.find(i => i.id === contract.customer).name : "" }}
+                      - {{ contract.contractNumber }} - {{ contract.name }}
+                    </template>
+                  </USelectMenu>
+                  <UButton
+                      variant="outline"
+                      color="rose"
+                      v-if="itemInfo.project"
+                      icon="i-heroicons-x-mark"
+                      @click="itemInfo.project = null"
+                  />
+                  <EntityModalButtons
+                      type="projects"
+                      :id="itemInfo.project"
+                      :create-query="{customer: itemInfo.customer, plant: itemInfo.plant}"
+                      @return-data="(data) => itemInfo.project = data.id"
+                  />
+                </InputGroup>
+
+              </UFormGroup>
 
             </div>
           </InputGroup>