diff --git a/src/frontend/app/actions/save-and-index-registered-mail-action/save-and-index-registered-mail-action.component.ts b/src/frontend/app/actions/save-and-index-registered-mail-action/save-and-index-registered-mail-action.component.ts
index aada90fdc55efd42cae9de47839169223160a2a4..3a4e5132a3987f980f3ea9a5163e102f9a45f755 100644
--- a/src/frontend/app/actions/save-and-index-registered-mail-action/save-and-index-registered-mail-action.component.ts
+++ b/src/frontend/app/actions/save-and-index-registered-mail-action/save-and-index-registered-mail-action.component.ts
@@ -46,7 +46,7 @@ export class SaveAndIndexRegisteredMailActionComponent implements OnInit {
                     data: {
                         type: this.data.resource.registeredMail_type,
                         warranty: this.data.resource.registeredMail_warranty,
-                        issuingSiteId: this.data.resource.registeredMail_issuingSite.split('#').slice(-1)[0],
+                        issuingSiteId: this.data.resource.registeredMail_issuingSite,
                         letter: this.data.resource.registeredMail_letter,
                         recipient: this.data.resource.registeredMail_recipient,
                         reference: this.data.resource.registeredMail_reference,
diff --git a/src/frontend/app/actions/save-and-print-registered-mail-action/save-and-print-registered-mail-action.component.ts b/src/frontend/app/actions/save-and-print-registered-mail-action/save-and-print-registered-mail-action.component.ts
index 7cac7037f6379d757c377a56df1e3b1cb343e362..d967cb18b13ab9b9af66ae90d5fbc1a11e12f067 100644
--- a/src/frontend/app/actions/save-and-print-registered-mail-action/save-and-print-registered-mail-action.component.ts
+++ b/src/frontend/app/actions/save-and-print-registered-mail-action/save-and-print-registered-mail-action.component.ts
@@ -45,7 +45,7 @@ export class SaveAndPrintRegisteredMailActionComponent implements OnInit {
                     data: {
                         type: this.data.resource.registeredMail_type,
                         warranty: this.data.resource.registeredMail_warranty,
-                        issuingSiteId: this.data.resource.registeredMail_issuingSite.split('#').slice(-1)[0],
+                        issuingSiteId: this.data.resource.registeredMail_issuingSite,
                         letter: this.data.resource.registeredMail_letter,
                         recipient: this.data.resource.registeredMail_recipient,
                         reference: this.data.resource.registeredMail_reference,