diff --git a/pms/controllers/pms_portal.py b/pms/controllers/pms_portal.py
index 2e4f7c9a0..be57179ff 100644
--- a/pms/controllers/pms_portal.py
+++ b/pms/controllers/pms_portal.py
@@ -93,6 +93,10 @@ class PortalFolio(CustomerPortal):
             "success_url",
             "%s?%s" % (folio_sudo.access_url, access_token if access_token else ""),
         )
+        custom_amount = False
+        if "custom_amount" in kwargs:
+            custom_amount = float(kwargs["custom_amount"])
+
         vals = {
             "acquirer_id": acquirer_id,
             "return_url": success_url,
@@ -118,6 +122,7 @@ class PortalFolio(CustomerPortal):
                     "subscription payments will be made automatically."
                 ),
             },
+            amount=custom_amount,
         )
 
     @http.route(
@@ -199,6 +204,8 @@ class PortalFolio(CustomerPortal):
                 download=download,
             )
         values = self._folio_get_page_view_values(folio_sudo, access_token, **kw)
+        if "custom_amount" in kw:
+            values["custom_amount"] = float(kw["custom_amount"])
         return request.render("pms.folio_portal_template", values)
 
 
diff --git a/pms/models/payment_transaction.py b/pms/models/payment_transaction.py
index 91ecdcbd8..4b1018131 100644
--- a/pms/models/payment_transaction.py
+++ b/pms/models/payment_transaction.py
@@ -22,7 +22,9 @@ class PaymentTransaction(models.Model):
             add_payment_vals["folio_ids"] = [(6, 0, self.folio_ids.ids)]
         return super(PaymentTransaction, self)._create_payment(add_payment_vals)
 
-    def render_folio_button(self, folio, submit_txt=None, render_values=None):
+    def render_folio_button(
+        self, folio, submit_txt=None, render_values=None, custom_amount=None
+    ):
         values = {
             "partner_id": folio.partner_id.id,
             "type": self.type,
@@ -36,7 +38,7 @@ class PaymentTransaction(models.Model):
             .sudo()
             .render(
                 self.reference,
-                folio.pending_amount,
+                custom_amount or folio.pending_amount,
                 folio.currency_id.id,
                 values=values,
             )
diff --git a/pms/views/folio_portal_templates.xml b/pms/views/folio_portal_templates.xml
index 2f7b22801..d3c5859a2 100644
--- a/pms/views/folio_portal_templates.xml
+++ b/pms/views/folio_portal_templates.xml
@@ -78,7 +78,7 @@
       <template id="portal_folio_payment" name="Folio Payment">
         <div
             class="row"
-            t-if="not tx_ids and folio.state in ('confirm','done') and folio.payment_state in ('not_paid', 'partial') and folio.amount_total"
+            t-if="folio.payment_state in ('not_paid', 'partial') and folio.pending_amount"
             id="portal_pay"
         >
             <div class="modal fade" id="pay_with" role="dialog">
@@ -117,6 +117,10 @@
                                         t-set="access_token"
                                         t-value="access_token or ''"
                                     />
+                                    <t
+                                        t-set="custom_amount"
+                                        t-value="custom_amount or ''"
+                                    />
                                     <t t-set="callback_method" t-value="''" />
                                     <t
                                         t-set="form_action"
@@ -124,9 +128,14 @@
                                     />
                                     <t
                                         t-set="prepare_tx_url"
-                                        t-value="'/folio/pay/' + str(folio.id) + '/form_tx/'"
+                                        t-value="'/folio/pay/' + str(folio.id) + '?custom_amount=' + custom_amount + '/form_tx/'"
                                     />
-                                    <t t-set="submit_txt">Pay Now</t>
+                                    <t t-if="custom_amount" t.set="submit_txt">
+                                            Pay <t t-esc="custom_amount" />
+                                    </t>
+                                    <t t-else="" t-set="submit_txt">
+                                            Pay Now
+                                    </t>
                                     <t t-set="icon_class" t-value="'fa-lock'" />
                                 </t>
                             </div>
@@ -146,10 +155,11 @@
             t-set="pending_manual_txs"
             t-value="tx_ids.filtered(lambda tx: tx.state == 'pending' and tx.acquirer_id.provider in ('transfer', 'manual'))"
         />
+        <t t-set="custom_amount" t-value="custom_amount or ''" />
         <div>
             <a
                 href="#"
-                t-if="folio.state in ('confirm','done') and folio.payment_state in ('not_paid', 'partial') and folio.amount_total and (pending_manual_txs or not tx_ids)"
+                t-if="folio.payment_state in ('not_paid', 'partial') and folio.pending_amount and not custom_amount"
                 class="btn btn-primary btn-block mb-2"
                 data-toggle="modal"
                 data-target="#pay_with"
@@ -157,10 +167,11 @@
                 <i class="fa fa-fw fa-arrow-circle-right" /> Pay Now
             </a>
             <div
-                t-if="tx_ids and not pending_manual_txs and folio.payment_state in ('not_paid', 'partial')"
+                t-if="folio.payment_state in ('not_paid', 'partial') and folio.pending_amount"
                 class="alert alert-info py-1 mb-2"
             >
-                <i class="fa fa-fw fa-check-circle" /> Pending
+                <!-- añadimos el importe en el boton-->
+                <i class="fa fa-fw fa-check-circle" /> Pay <t t-esc="custom_amount" />
             </div>
             <div
                 t-if="folio.payment_state in ('paid', 'overpayment')"
@@ -175,7 +186,7 @@
             t-value="folio.transaction_ids.filtered(lambda tx: tx.state in ('authorized', 'done'))"
         />
         <div
-            t-if="not tx_ids and folio.state in('confirm','done') and folio.payment_state in ('not_paid', 'partial') and folio.amount_total"
+            t-if="folio.payment_state in ('not_paid', 'partial') and folio.pending_amount"
             id="portal_pay"
         >
             <div t-if="pms or acquirers" id="payment_method">