diff --git a/packages/bookshop/srv/cat-service.cds b/packages/bookshop/srv/cat-service.cds
index f6b77648..98b7a27e 100644
--- a/packages/bookshop/srv/cat-service.cds
+++ b/packages/bookshop/srv/cat-service.cds
@@ -16,10 +16,6 @@ service CatalogService {
     BusinessPartnerIsBlocked
   };
 
-  event OrderBlocked {
-    ID: UUID;
-  };
-
   @requires_: 'authenticated-user'
   @insertonly entity Orders as projection on my.Orders;
 
diff --git a/packages/bookshop/srv/cat-service.js b/packages/bookshop/srv/cat-service.js
index 6b335fa2..507ca0f6 100644
--- a/packages/bookshop/srv/cat-service.js
+++ b/packages/bookshop/srv/cat-service.js
@@ -8,19 +8,6 @@ module.exports = cds.service.impl(async function () {
   this.before('CREATE', Orders, _reduceStock)
   this.on('READ', BusinessPartners, req => bupaSrv.tx(req).run(req.query))
 
-  /** Block orders if business partner is blocked */
-  bupaSrv.on('BusinessPartner/Changed', async msg => {
-    console.log('>> Received BusinessPartner/Changed', msg.data)
-    const BUSINESSPARTNER = msg.data.KEY[0].BUSINESSPARTNER
-    const tx = cds.tx(msg)
-    const orders = await tx.run(SELECT('ID').from(Orders).where({ createdBy: BUSINESSPARTNER, status: 'processing' }))
-    if (!orders.length) return
-    const businessPartner = await bupaSrv.tx(msg).run(SELECT.one(BusinessPartners).where({ ID: BUSINESSPARTNER }))
-    if (!businessPartner || !businessPartner.BusinessPartnerIsBlocked) return
-    await Promise.all(orders.map(order => tx.run(UPDATE(Orders).where(order).set({ status: 'blocked' }))))
-    orders.forEach(order => this.emit('OrderBlocked', order) && console.log('>> Emitted OrderBlocked', order))
-  })
-
   /** Add some discount for overstocked books */
   function _addDiscount2(each, discount) {
     each.title += ` -- ${discount}% discount!`
diff --git a/packages/bookshop/srv/external/API_BUSINESS_PARTNER.js b/packages/bookshop/srv/external/API_BUSINESS_PARTNER.js
deleted file mode 100644
index 0c055df6..00000000
--- a/packages/bookshop/srv/external/API_BUSINESS_PARTNER.js
+++ /dev/null
@@ -1,9 +0,0 @@
-module.exports = srv => {
-    srv.on(['CREATE', 'UPDATE', 'DELETE'], req => {
-        const payload = {
-            KEY: [{ BUSINESSPARTNER: req.data.BusinessPartner }]
-        }
-        srv.emit('BusinessPartner/Changed', payload)
-        console.log('<< Emitted BusinessPartner/Changed', payload)
-    })
-}
\ No newline at end of file