fix

client/modules/crm/src/views/mass-email/modals/send-test.js

@@ -199,7 +199,7 @@ export default class MassEmailSendTestModalView extends ModalView {
         this.disableButton('sendTest');
 
         Espo.Ajax.postRequest('MassEmail/action/sendTest', {
-            id: this.formModel.id,
+            id: this.model.id,
             targetList: list,
         })
         .then(() => {

client/modules/crm/src/views/mass-email/record/list-for-campaign.js

@@ -41,7 +41,7 @@ export default class extends ListRecordView {
             return;
         }
 
-        const view = new MassEmailSendTestModalView({model: this.model});
+        const view = new MassEmailSendTestModalView({model: model});
 
         await this.assignView('modal', view);
         await view.render();