diff --git a/static/src/app/screens/partner_list_patch.js b/static/src/app/screens/partner_list_patch.js
index 8c1c74d..abe5429 100644
--- a/static/src/app/screens/partner_list_patch.js
+++ b/static/src/app/screens/partner_list_patch.js
@@ -17,55 +17,4 @@ patch(PartnerList.prototype, {
         return super.clickPartner(...arguments);
     },
 
-    async updateCustomerData() {
-        if (!navigator.onLine) {
-            if (this.notification) {
-                this.notification.add("You must be online to update customer data.", 3000);
-            }
-            return;
-        }
-
-        try {
-            this.state.loading = true;
-            // console.log("[pos_loyalty_multi_level] Fetching the latest 100 customers from the backend...");
-
-            // In Odoo 19, data.searchRead fetches data AND creates/updates the local reactive models invisibly 
-            const newPartners = await this.pos.data.searchRead(
-                "res.partner",
-                [["active", "=", true]],
-                this.pos.data.fields["res.partner"],
-                { limit: 25, order: 'id desc' }
-            );
-
-            let addedCount = 0;
-            for (const partner of newPartners) {
-                // Fetch the instantiated local model proxy instead of the raw data dict
-                const localPartner = this.pos.models["res.partner"].get(partner.id);
-                if (localPartner && !this.loadedPartnerIds.has(localPartner.id)) {
-                    this.loadedPartnerIds.add(localPartner.id);
-                    this.state.loadedPartners.push(localPartner);
-                    addedCount++;
-                }
-            }
-
-            // Refresh initial view 
-            this.state.initialPartners = this.pos.models["res.partner"].filter((p) => {
-                const par = p.property_account_receivable_id;
-                return !par || par.non_trade !== true;
-            });
-
-            if (this.notification) {
-                this.notification.add(`Successfully synced list. Found ${addedCount} new customers.`, 3000);
-            }
-            // console.log(`[pos_loyalty_multi_level] Fetch complete. Added ${addedCount} customers to the session.`);
-
-        } catch (e) {
-            console.warn("[pos_loyalty_multi_level] Failed to update customer data:", e);
-            if (this.notification) {
-                this.notification.add("Failed to fetch customer data from server.", 3000);
-            }
-        } finally {
-            this.state.loading = false;
-        }
-    }
 });
diff --git a/static/src/app/screens/partner_list_patch.xml b/static/src/app/screens/partner_list_patch.xml
index d9d08e6..14f8c14 100644
--- a/static/src/app/screens/partner_list_patch.xml
+++ b/static/src/app/screens/partner_list_patch.xml
@@ -1,12 +1,3 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <templates id="template" xml:space="preserve">
-    <t t-name="pos_loyalty_multi_level.PartnerList" t-inherit="point_of_sale.PartnerList" t-inherit-mode="extension">
-        <xpath expr="//t[@t-set-slot='header']/button" position="after">
-            <button class="btn btn-secondary btn-lg lh-lg me-2 ms-2" role="img" aria-label="Update Customer Data"
-                    t-on-click="() => this.updateCustomerData()"
-                    title="Fetch newly registered customers from the backend">
-                <i class="fa fa-refresh"></i> Update Data
-            </button>
-        </xpath>
-    </t>
 </templates>