diff --git a/dictation_function/src/entity/account.entity.ts b/dictation_function/src/entity/account.entity.ts
index 3a1c9af..15988a6 100644
--- a/dictation_function/src/entity/account.entity.ts
+++ b/dictation_function/src/entity/account.entity.ts
@@ -49,7 +49,7 @@ export class Account {
   @Column({ nullable: true, type: "datetime" })
   deleted_at: Date | null;
 
-  @Column({ nullable: true, type: "datetime" })
+  @Column({ nullable: true, type: "varchar" })
   created_by: string | null;
 
   @CreateDateColumn({
@@ -58,7 +58,7 @@ export class Account {
   }) // defaultはSQLite用設定値.本番用は別途migrationで設定
   created_at: Date;
 
-  @Column({ nullable: true, type: "datetime" })
+  @Column({ nullable: true, type: "varchar"})
   updated_by: string | null;
 
   @UpdateDateColumn({
diff --git a/dictation_function/src/entity/license.entity.ts b/dictation_function/src/entity/license.entity.ts
index 56f2f00..ca38f5a 100644
--- a/dictation_function/src/entity/license.entity.ts
+++ b/dictation_function/src/entity/license.entity.ts
@@ -40,7 +40,7 @@ export class License {
   @Column({ nullable: true, type: "bigint", transformer: bigintTransformer })
   delete_order_id: number | null;
 
-  @Column({ nullable: true, type: "datetime" })
+  @Column({ nullable: true, type: "varchar" })
   created_by: string | null;
 
   @CreateDateColumn({
@@ -49,7 +49,7 @@ export class License {
   })
   created_at: Date;
 
-  @Column({ nullable: true, type: "datetime" })
+  @Column({ nullable: true, type: "varchar" })
   updated_by: string | null;
 
   @UpdateDateColumn({
@@ -89,7 +89,7 @@ export class LicenseAllocationHistory {
   @Column({ nullable: true, type: "datetime" })
   deleted_at: Date | null;
 
-  @Column({ nullable: true, type: "datetime" })
+  @Column({ nullable: true, type: "varchar" })
   created_by: string | null;
 
   @CreateDateColumn({
@@ -98,7 +98,7 @@ export class LicenseAllocationHistory {
   })
   created_at: Date;
 
-  @Column({ nullable: true, type: "datetime" })
+  @Column({ nullable: true, type: "varchar" })
   updated_by: string | null;
 
   @UpdateDateColumn({
diff --git a/dictation_function/src/entity/user.entity.ts b/dictation_function/src/entity/user.entity.ts
index 10032d4..d8c78f9 100644
--- a/dictation_function/src/entity/user.entity.ts
+++ b/dictation_function/src/entity/user.entity.ts
@@ -31,6 +31,9 @@ export class User {
   @Column({ nullable: true, type: "varchar" })
   accepted_eula_version: string | null;
 
+  @Column({ nullable: true, type: "varchar" })
+  accepted_privacy_notice_version: string | null;
+
   @Column({ nullable: true, type: "varchar" })
   accepted_dpa_version: string | null;
 
@@ -55,7 +58,7 @@ export class User {
   @Column({ nullable: true, type: "datetime" })
   deleted_at: Date | null;
 
-  @Column({ nullable: true, type: "datetime" })
+  @Column({ nullable: true, type: "varchar" })
   created_by: string | null;
 
   @CreateDateColumn({
@@ -64,7 +67,7 @@ export class User {
   }) // defaultはSQLite用設定値.本番用は別途migrationで設定
   created_at: Date;
 
-  @Column({ nullable: true, type: "datetime" })
+  @Column({ nullable: true, type: "varchar" })
   updated_by: string | null;
 
   @UpdateDateColumn({
diff --git a/dictation_function/src/functions/licenseAlert.ts b/dictation_function/src/functions/licenseAlert.ts
index ad4119f..b3735fc 100644
--- a/dictation_function/src/functions/licenseAlert.ts
+++ b/dictation_function/src/functions/licenseAlert.ts
@@ -167,9 +167,16 @@ async function getAlertMailTargetAccount(
 
     // 第五のアカウントを取得
     const accountRepository = datasource.getRepository(Account);
+    // 管理者ユーザーが規約に同意しているアカウントのみを取得
+    // プロダクト バックログ項目 4073: [保守]システムに一度もログインしていないユーザーにはライセンスアラートメールを送信しないようにしたい の対応
     const accounts = await accountRepository.find({
       where: {
         tier: TIERS.TIER5,
+        primaryAdminUser: {
+          accepted_dpa_version: Not(IsNull()),
+          accepted_eula_version: Not(IsNull()),
+          accepted_privacy_notice_version: Not(IsNull()),
+        },
       },
       relations: {
         primaryAdminUser: true,
diff --git a/dictation_function/src/test/common/utility.ts b/dictation_function/src/test/common/utility.ts
index f675ed7..3db9a67 100644
--- a/dictation_function/src/test/common/utility.ts
+++ b/dictation_function/src/test/common/utility.ts
@@ -96,7 +96,7 @@ export const makeTestAccount = async (
       locked: d?.locked ?? false,
       company_name: d?.company_name ?? "test inc.",
       verified: d?.verified ?? true,
-      deleted_at: d?.deleted_at ?? "",
+      deleted_at: d?.deleted_at ?? null,
       created_by: d?.created_by ?? "test_runner",
       created_at: d?.created_at ?? new Date(),
       updated_by: d?.updated_by ?? "updater",
@@ -112,8 +112,16 @@ export const makeTestAccount = async (
       account_id: accountId,
       role: d?.role ?? "admin none",
       author_id: d?.author_id ?? undefined,
-      accepted_eula_version: d?.accepted_eula_version ?? "1.0",
-      accepted_dpa_version: d?.accepted_dpa_version ?? "1.0",
+      accepted_eula_version:
+        d?.accepted_eula_version !== undefined
+          ? d.accepted_eula_version
+          : "1.0",
+      accepted_privacy_notice_version:
+        d?.accepted_privacy_notice_version !== undefined
+          ? d.accepted_privacy_notice_version
+          : "1.0",
+      accepted_dpa_version:
+        d?.accepted_dpa_version !== undefined ? d.accepted_dpa_version : "1.0",
       email_verified: d?.email_verified ?? true,
       auto_renew: d?.auto_renew ?? true,
       notification: d?.notification ?? true,
diff --git a/dictation_function/src/test/licenseAlert.spec.ts b/dictation_function/src/test/licenseAlert.spec.ts
index c3891a0..f013f47 100644
--- a/dictation_function/src/test/licenseAlert.spec.ts
+++ b/dictation_function/src/test/licenseAlert.spec.ts
@@ -80,7 +80,7 @@ describe("licenseAlert", () => {
     // redisからキャッシュが削除されていることを確認
     const getAsync = promisify(redisClient.keys).bind(redisClient);
     const keys = await getAsync(`*`);
-    expect(keys).toHaveLength(0); 
+    expect(keys).toHaveLength(0);
   });
 
   it("ライセンス在庫不足メール、ライセンス失効警告メールが送信されること", async () => {
@@ -224,6 +224,51 @@ describe("licenseAlert", () => {
     const keys = await getAsync(`*`);
     expect(keys).toHaveLength(0);
   });
+
+  it("規約同意していない管理者ユーザーに対して、ライセンス失効警告メール・在庫不足メールが送信されないこと", async () => {
+    if (!source) fail();
+    const context = new InvocationContext();
+    const sendgridMock = new SendGridServiceMock() as SendGridService;
+    const adb2cMock = new AdB2cServiceMock() as AdB2cService;
+
+    // 呼び出し回数でテスト成否を判定
+    const spySend = jest.spyOn(sendgridMock, "sendMail");
+
+    const currentDate = new DateWithZeroTime();
+    const expiringSoonDate = new DateWithDayEndTime(currentDate.getTime());
+    const { account, admin } = await makeTestAccount(
+      source,
+      { tier: 5 },
+      {
+        external_id: "external_id5",
+        auto_renew: false,
+        accepted_dpa_version: null,
+        accepted_eula_version: null,
+        accepted_privacy_notice_version: null,
+      }
+    );
+    await createLicense(
+      source,
+      1,
+      expiringSoonDate,
+      account.id,
+      "NORMAL",
+      "Allocated",
+      admin.id,
+      null,
+      null,
+      null
+    );
+    await licenseAlertProcessing(
+      context,
+      source,
+      redisClient,
+      sendgridMock,
+      adb2cMock
+    );
+    // メール送信がされていないことを確認
+    expect(spySend.mock.calls).toHaveLength(0);
+  });
 });
 
 // テスト用sendgrid
@@ -305,6 +350,17 @@ export class AdB2cServiceMock {
           },
         ],
       },
+      {
+        id: "external_id5",
+        displayName: "test5",
+        identities: [
+          {
+            signInType: ADB2C_SIGN_IN_TYPE.EMAILADDRESS,
+            issuer: "issuer",
+            issuerAssignedId: "test5@mail.com",
+          },
+        ],
+      },
     ];
     return AdB2cMockUsers;
   }