diff --git a/src/pages/InvoiceIn/Card/InvoiceInDescriptor.vue b/src/pages/InvoiceIn/Card/InvoiceInDescriptor.vue
index ec528ef76..d6ce0e41d 100644
--- a/src/pages/InvoiceIn/Card/InvoiceInDescriptor.vue
+++ b/src/pages/InvoiceIn/Card/InvoiceInDescriptor.vue
@@ -20,11 +20,7 @@ import { useCapitalize } from 'src/composables/useCapitalize';
 import SupplierDescriptorProxy from 'src/pages/Supplier/Card/SupplierDescriptorProxy.vue';
 
 const $props = defineProps({
-    id: {
-        type: Number,
-        required: false,
-        default: null,
-    },
+    id: { type: Number, default: null },
 });
 
 const route = useRoute();
@@ -51,6 +47,10 @@ const actions = {
         cb: checkToBook,
         action: toBook,
     },
+    unbook: {
+        title: 'Are you sure you want to unbook this invoice?',
+        action: toUnbook,
+    },
     delete: {
         title: 'Are you sure you want to delete this invoice?',
         action: deleteInvoice,
@@ -235,6 +235,19 @@ async function toBook() {
     setTimeout(() => location.reload(), 500);
 }
 
+async function toUnbook() {
+    const { data } = await axios.post(`InvoiceIns/${entityId.value}/toUnbook`);
+    const { isLinked, bookEntry, accountingEntries } = data;
+
+    const type = isLinked ? 'warning' : 'positive';
+    const message = isLinked
+        ? t('isLinked', { bookEntry, accountingEntries })
+        : t('isNotLinked', { bookEntry });
+
+    quasar.notify({ type, message });
+    if (isLinked) await cardDescriptorRef.value.getData();
+}
+
 async function deleteInvoice() {
     await axios.delete(`InvoiceIns/${entityId.value}`);
     quasar.notify({
@@ -253,8 +266,6 @@ async function cloneInvoice() {
     router.push({ path: `/invoice-in/${data.id}/summary` });
 }
 
-const requiredFieldRule = (val) => val || t('globals.requiredField');
-
 const isAdministrative = () => hasAny(['administrative']);
 
 const isAgricultural = () =>
@@ -346,6 +357,16 @@ const createInvoiceInCorrection = async () => {
             >
                 <QItemSection>{{ t('To book') }}</QItemSection>
             </QItem>
+            <QItem
+                v-if="entity.isBooked && isAdministrative()"
+                v-ripple
+                clickable
+                @click="triggerMenu('unbook')"
+            >
+                <QItemSection>
+                    {{ t('To unbook') }}
+                </QItemSection>
+            </QItem>
             <QItem
                 v-if="isAdministrative()"
                 v-ripple
@@ -491,7 +512,7 @@ const createInvoiceInCorrection = async () => {
                             :options="siiTypeInvoiceOuts"
                             option-value="id"
                             option-label="code"
-                            :rules="[requiredFieldRule]"
+                            :required="true"
                         />
                     </QItemSection>
                     <QItemSection>
@@ -501,7 +522,7 @@ const createInvoiceInCorrection = async () => {
                             :options="cplusRectificationTypes"
                             option-value="id"
                             option-label="description"
-                            :rules="[requiredFieldRule]"
+                            :required="true"
                         />
                         <VnSelectFilter
                             :label="`${useCapitalize(t('globals.reason'))}*`"
@@ -509,7 +530,7 @@ const createInvoiceInCorrection = async () => {
                             :options="invoiceCorrectionTypes"
                             option-value="id"
                             option-label="description"
-                            :rules="[requiredFieldRule]"
+                            :required="true"
                         />
                     </QItemSection>
                 </QItem>
@@ -549,9 +570,14 @@ const createInvoiceInCorrection = async () => {
 }
 </style>
 <i18n>
+en:
+    isNotLinked: The entry {bookEntry} has been deleted with {accountingEntries} entries
+    isLinked: The entry {bookEntry} has been linked to Sage. Please contact administration for further information
 es:
     To book: Contabilizar
+    To unbook: Descontabilizar
     Are you sure you want to book this invoice?: Estas seguro de querer asentar esta factura?
+    Are you sure you want to unbook this invoice?: Estas seguro de querer desasentar esta factura?
     Delete invoice: Eliminar factura
     Are you sure you want to delete this invoice?:  Estas seguro de querer eliminar esta factura?
     Invoice deleted: Factura eliminada
@@ -565,4 +591,6 @@ es:
     Rectificative invoice: Factura rectificativa
     Original invoice: Factura origen
     Entry: entrada
+    isNotLinked: Se ha eliminado el asiento nº {bookEntry} con {accountingEntries} apuntes
+    isLinked: El asiento {bookEntry} fue enlazado a Sage, por favor contacta con administración
 </i18n>