diff --git a/src/command/communicationTypeCommand.ts b/src/command/communicationTypeCommand.ts
index 992ef1c..fdc686e 100644
--- a/src/command/communicationTypeCommand.ts
+++ b/src/command/communicationTypeCommand.ts
@@ -1,12 +1,14 @@
+import { CommunicationFieldType } from "../type/fieldTypes";
+
 export interface CreateCommunicationTypeCommand {
   type: string;
-  useColumns: Array<string>;
+  useColumns: Array<CommunicationFieldType>;
 }
 
 export interface UpdateCommunicationTypeCommand {
   id: number;
   type: string;
-  useColumns: Array<string>;
+  useColumns: Array<CommunicationFieldType>;
 }
 
 export interface DeleteCommunicationTypeCommand {
diff --git a/src/controller/admin/memberController.ts b/src/controller/admin/memberController.ts
index 0f1ea37..71b349b 100644
--- a/src/controller/admin/memberController.ts
+++ b/src/controller/admin/memberController.ts
@@ -116,6 +116,12 @@ export async function getCommunicationsByMember(req: Request, res: Response): Pr
  * @returns {Promise<*>}
  */
 export async function createMember(req: Request, res: Response): Promise<any> {
+  const salutation = req.body.salutation;
+  const firstname = req.body.firstname;
+  const lastname = req.body.lastname;
+  const nameaffix = req.body.nameaffix;
+  const birthdate = req.body.birthdate;
+
   res.status(200).send(0);
 }
 
@@ -187,6 +193,11 @@ export async function addCommunicationToMember(req: Request, res: Response): Pro
  */
 export async function updateMemberById(req: Request, res: Response): Promise<any> {
   const memberId = parseInt(req.params.id);
+  const salutation = req.body.salutation;
+  const firstname = req.body.firstname;
+  const lastname = req.body.lastname;
+  const nameaffix = req.body.nameaffix;
+  const birthdate = req.body.birthdate;
 
   res.sendStatus(204);
 }
diff --git a/src/entity/communicationType.ts b/src/entity/communicationType.ts
index c40d20b..c9161df 100644
--- a/src/entity/communicationType.ts
+++ b/src/entity/communicationType.ts
@@ -1,5 +1,6 @@
 import { Column, Entity, OneToMany, PrimaryColumn } from "typeorm";
 import { communication } from "./communication";
+import { CommunicationFieldType, communicationFieldTypes } from "../type/fieldTypes";
 
 @Entity()
 export class communicationType {
@@ -14,15 +15,15 @@ export class communicationType {
     length: 255,
     default: "",
     transformer: {
-      from(value: string): Array<string> {
-        return (value ?? "").split(",");
+      from(value: string): Array<CommunicationFieldType> {
+        return communicationFieldTypes.filter((e) => value?.includes(e));
       },
-      to(value: Array<string>): string {
-        return (value ?? []).join(",");
+      to(value: Array<CommunicationFieldType>): string {
+        return value.filter((e) => communicationFieldTypes.includes(e)).join(",");
       },
     },
   })
-  useColumns: Array<string>;
+  useColumns: Array<CommunicationFieldType>;
 
   @OneToMany(() => communication, (communication) => communication.type)
   communications: communication[];
diff --git a/src/type/fieldTypes.ts b/src/type/fieldTypes.ts
new file mode 100644
index 0000000..934d24d
--- /dev/null
+++ b/src/type/fieldTypes.ts
@@ -0,0 +1,10 @@
+export type CommunicationFieldType = "mobile" | "email" | "city" | "street" | "streetNumber" | "streetNumberAddition";
+
+export const communicationFieldTypes: Array<CommunicationFieldType> = [
+  "mobile",
+  "email",
+  "city",
+  "street",
+  "streetNumber",
+  "streetNumberAddition",
+];
diff --git a/src/viewmodel/admin/communicationType.models.ts b/src/viewmodel/admin/communicationType.models.ts
index ac46507..845b555 100644
--- a/src/viewmodel/admin/communicationType.models.ts
+++ b/src/viewmodel/admin/communicationType.models.ts
@@ -1,5 +1,7 @@
+import { CommunicationFieldType } from "../../type/fieldTypes";
+
 export interface CommunicationTypeViewModel {
   id: number;
   type: string;
-  fields: Array<string>;
+  fields: Array<CommunicationFieldType>;
 }