69 Giu Chan Khach Hang

---
name: 69-giu-chan-khach-hang
description: "Xay he thong giu chan khach hang cho SME VN — phan nhanh theo mo hinh kinh doanh truoc (mua 1 lan / goi lieu trinh / the thanh vien / thue bao), bang tin hieu sap mat khach viet lai bang du lieu SME thuc su co, moc can thiep truoc khi mat, khao sat ly do roi kem bang ly do sang uu dai, chuoi keo lai chay email va Zalo OA song song, cong 3 chi so do luong voi quy tac trung thuc. Kich hoat khi user nhac 'giu chan khach hang', 'khach khong quay lai', 'churn', 'retention', 'khach bo giua lieu trinh', 'keo lai khach cu', 'khach doi huy goi', 'ti le mua lai thap'. Khong dung cho — thiet ke goi ban cho khach moi thi dung skill 31-offer-design; viet chuoi email thuan tuy thi dung skill 14-email-marketing; doc duong cong cohort de biet ai sap roi thi dung skill 13-phan-tich-du-lieu truoc."
metadata:
  version: 1.0.0
  category: operations
license: MIT
triggers:
  - "giu chan khach hang"
  - "khach khong quay lai"
  - "churn"
  - "retention"
  - "ti le mua lai thap"
  - "khach bo giua lieu trinh"
  - "keo lai khach cu"
  - "khach doi huy goi"
  - "win-back"
  - "khao sat ly do roi"
output: "File .md — phan nhanh mo hinh, bang tin hieu sap mat khach, lich can thiep, khao sat ly do roi, bang ly do sang uu dai, chuoi keo lai 2 kenh, bang do luong 3 chi so"
related:
  - 13-phan-tich-du-lieu
  - 14-email-marketing
  - 18-referral-program
  - 31-offer-design
  - 09-insight-khach-hang
  - 07-bao-cao-marketing
---

# Giu Chan Khach Hang — He Thong, Khong Phai Chien Dich

> Giu duoc mot khach cu re hon nhieu so voi mua mot khach moi, nhung chi khi no la he thong chay lien tuc: nhan tin hieu som → can thiep dung luc → khi khach van roi thi hoi cho ra ly do → keo lai bang de nghi khop ly do.

## Thu thap thong tin

Hoi toi da 4 cau:

1. **Mo hinh kinh doanh la gi va chu ky mua lai binh thuong bao lau?** Mua 1 lan / goi lieu trinh nhieu buoi / the thanh vien / thue bao dinh ky? Khach binh thuong quay lai sau bao nhieu ngay?
2. **Ti le mua lai hien tai bao nhieu, tren bao nhieu khach dang hoat dong?** Neu chua do duoc, noi ro — se do truoc khi lam gi khac.
3. **Da biet ly do khach roi chua?** Co dang hoi khong, hoi bang cach nao, thu duoc gi?
4. **Dang co kenh nao de cham lai khach cu?** Zalo OA, email, SMS, nhan vien goi truc tiep, nhom khach hang? Kenh nao dang thuc su co nguoi doc?

## Nguyen tac

1. **Phan nhanh mo hinh kinh doanh truoc.** Moi thu phia sau — dinh nghia "mat khach", tin hieu som, moc can thiep, loai uu dai — deu phu thuoc vao mo hinh. Lam nguoc lai la lam sai.
2. **Tin hieu phai do duoc bang du lieu SME thuc su co.** Khong dung tan suat dang nhap hay muc dung tinh nang — SME VN khong co he thong do dac do. Tin hieu that nam o lich hen, tin nhan, don hang, danh gia.
3. **Can thiep truoc khi mat re hon keo lai sau khi mat.** Ngan sach uu tien cho moc can thiep som, khong don het vao chuoi win-back.
4. **Uu dai phai khop ly do.** Giam gia khong cuu duoc nguoi khong dung den. Huong dan lai khong cuu duoc nguoi thay dat qua.
5. **Ky luat uu dai la de bao ve chinh minh.** Giam sau day khach hoc cach doa nghi de duoc giam — luc do ban da tu tao ra kenh xin giam gia.
6. **Luon de nut "van tiep tuc huy" nhin thay o moi buoc.** Giu chan bang cach lam kho viec huy la cach nhanh nhat de doi mot khach roi lay mot bai danh gia xau va mot cau chuyen ke lai.
7. **Trung thuc trong do luong.** Khach "giu duoc" ma 30 ngay sau van roi thi **khong tinh la giu duoc**. Bao cao khong theo quy tac nay se day ban tang uu dai vo ich.

## Quy trinh

### Buoc 1 — Phan nhanh mo hinh kinh doanh

| Mo hinh | "Mat khach" nghia la gi | Chu ky mua lai lam moc | Tin hieu som nhat |
|---------|-------------------------|------------------------|-------------------|
| **Mua 1 lan / thua** (thoi trang, do gia dung, F&B le) | Qua 2 lan chu ky mua lai rieng cua khach do ma khong co don | Tinh tu lich su cua chinh khach do, khong dung so trung binh cua ca shop | Ngung mo tin Zalo OA, khong phan hoi chuong trinh moi |
| **Goi lieu trinh nhieu buoi** (spa, nha khoa, tri lieu, khoa hoc nhieu buoi) | Bo do giua goi — con buoi chua dung | So buoi con lai + so ngay tu buoi gan nhat | Doi lich >= 2 lan, hoac khong den mot buoi da dat |
| **The thanh vien / goi han muc** | Het han khong gia han | Ngay het han | Muc su dung thap bat thuong o nua sau ky |
| **Thue bao dinh ky** (phan mem, hop dong dich vu thang) | Khong gia han hoac bao dung | Ngay den ky | Hoi ve dieu khoan huy, giam nguoi dung, giam tuong tac |

> **Ngoai pham vi:** thu hoi thanh toan that bai tu dong (dunning / retry the). SME VN thu tien bang chuyen khoan, COD, MoMo, tien mat tai quay — khong co be mat de tu dong thu lai. Neu ban thu tien bang the dinh ky qua cong thanh toan, do la cau hinh cua don vi thanh toan, khong phai viec cua skill nay.

**Truoc khi di tiep:** neu chua co so ti le mua lai, chay `13-phan-tich-du-lieu` de dung duong cong cohort — biet khach thuong roi o moc nao la dieu kien de dat moc can thiep dung cho.

### Buoc 2 — Bang tin hieu sap mat khach (viet cho du lieu SME VN co that)

| # | Tin hieu | Cach do (khong can he thong phuc tap) | Muc rui ro | Thuong xuat hien truoc khi mat |
|---|----------|----------------------------------------|-----------|-------------------------------|
| 1 | **So ngay tu lan cuoi vuot chu ky rieng cua khach do** | So ngay hien tai / chu ky trung binh cua chinh khach do | Cao khi > 1.5 lan chu ky | Som nhat, tin hieu nen dat moc dau tien |
| 2 | **Khong den buoi da dat** (no-show) hoac doi lich lien tiep | Ghi trong so lich hen | Rat cao | Ngay lap tuc |
| 3 | **Ngung mo tin Zalo OA** | Ti le doc broadcast cua rieng khach do giam ve 0 qua 2-3 lan gui | Trung binh | Som, nhung nhieu — dung ket hop voi tin hieu khac |
| 4 | **Bo do giua goi lieu trinh** | So buoi con lai > 0 va so ngay tu buoi gan nhat vuot khoang cach binh thuong giua 2 buoi | Rat cao | Ro rang nhat voi mo hinh goi |
| 5 | **Phan nan hoac danh gia thap** | Tin nhan, danh gia tren nen tang, phan hoi cho nhan vien | Rat cao | Ngay lap tuc |
| 6 | **Giam quy mo don** (gia tri hoac so luong tut ro) | So sanh 2-3 don gan nhat voi trung binh cua chinh khach do | Trung binh | Truoc khi ngung han |

**Quy tac doc bang nay:** mot tin hieu don le chua du ket luan, tru tin hieu 2 va 5 — hai cai do can hanh dong ngay. Hai tin hieu tro len cung luc thi xep vao nhom rui ro cao.

### Buoc 3 — Can thiep truoc khi mat

Moi tin hieu gan voi mot moc kich hoat. Viet ro: ai lam, lam gi, qua kenh nao, trong bao lau.

| Tin hieu kich hoat | Moc | Can thiep | Kenh | Nguoi lam |
|--------------------|-----|-----------|------|-----------|
| So ngay vuot 1.0 lan chu ky | Nhac nhe | Tin ngan huu ich, khong ban gi: nhac lich cham soc / meo dung / nhac han dung | Zalo OA | Tu dong |
| So ngay vuot 1.5 lan chu ky | Chu dong moi | Loi moi quay lai co ly do cu the cho rieng ho, kem de nghi dat lich | Zalo OA + goi neu la khach gia tri cao | Nhan vien cham soc |
| Khong den buoi da dat | Trong 24h | Goi hoi ly do that, dat lai lich ngay trong cuoc goi | Goi dien | Nhan vien phu trach |
| Bo do giua goi lieu trinh | Sau khoang cach binh thuong x1.5 | Nhac so buoi con lai + han su dung + de xuat 2 khung gio cu the | Zalo OA, neu khong phan hoi thi goi | Nhan vien phu trach |
| Phan nan / danh gia thap | Trong 24h | Nguoi co tham quyen xu ly lien he truc tiep, khong tra loi mau | Goi dien | Quan ly |
| The / goi sap het han | Truoc 14 ngay va truoc 3 ngay | Nhac han + tong ket gia tri da dung + de nghi gia han | Zalo OA + email | Tu dong |
| Giam quy mo don | Sau don thu 2 giam | Hoi mot cau duy nhat: co gi thay doi khong | Zalo OA | Nhan vien cham soc |

> Can thiep som khong duoc bat dau bang uu dai. Bat dau bang giup do hoac nhac viec. Uu dai chi xuat hien khi khach da noi ra van de — neu khong, ban dang day chinh khach dang khoe manh vao thoi quen cho giam gia.

### Buoc 4 — Khao sat ly do roi + bang ly do sang uu dai

**Thiet ke khao sat:**
- **1 cau hoi, 5-8 lua chon**, cho phep ghi them bang chu. Nhieu hon 8 lua chon thi khach chon bua.
- Dat cau hoi kieu "de chung toi lam tot hon", khong kieu "tai sao ban bo di".
- Dat truoc khi hien uu dai — cau tra loi la thu quyet dinh nen de nghi cai gi.
- Xep lua chon hay gap len dau; xem lai thu tu moi quy.

**Bang ly do sang uu dai:**

| Ly do khach khai | De nghi chinh | De nghi du phong | Khong lam |
|------------------|---------------|------------------|-----------|
| **Qua dat** | Giam gia trong gioi han | Ha xuong goi nho hon | Dung ha gia vinh vien |
| **Khong dung den** | Tam dung goi / bao luu | Huong dan lai + dat lich cu the | Dung giam gia — khong giai quyet van de |
| **Thieu thu can** | Lo trinh: khi nao co, dieu gi thay the trong luc cho | Gioi thieu phuong an tam thoi | Dung hua cai chua chac lam |
| **Ban tam thoi / ban ron** | Tam dung, hen moc quay lai cu the | Chuyen sang tan suat thap hon | Dung ep dat lich ngay |
| **Chat luong khong nhu ky vong** | Nguoi co tham quyen lien he, xu ly cu the truong hop do | Lam lai / bu buoi | Dung chuyen thang sang giam gia — do la mua su im lang |
| **Chuyen sang ben khac** | Hoi 1 cau: ben do hon o diem nao. Ghi lai | Neu chenh lech co the bu duoc thi de nghi cu the | Dung noi xau doi thu |
| **Da dong cua / khong con nhu cau** | **Khong chao moi gi ca.** Cam on, chuc mung, giu cua mo | — | Dung gui bat ky uu dai nao |

### Buoc 5 — Ky luat bat buoc (khong co ngoai le)

- **Khong giam qua 30%.** Giam sau hon day khach hoc cach doa nghi de duoc giam — ban tu bien viec giu chan thanh mot kenh xin giam gia.
- **Toi da 2 uu dai moi lan.** Mot de nghi chinh, mot du phong. Nhieu hon la bay lua chon, khach dong tab.
- **Tam dung toi da 3 thang.** Dai hon thi ti le quay lai gan nhu bang khong, ma ban lai mat cho trong danh sach cham soc.
- **Khao sat 5-8 lua chon.** Khong nhieu hon.
- **Nut "van tiep tuc huy" nhin thay o moi buoc.** Cung co chu, cung de bam, khong an duoi mau nhat, khong doi ba man hinh moi hien.
- **Khong lap lai cung mot uu dai cho nguoi da nhan roi lai doi nghi.** Ghi lai ai da nhan gi.
- **Neu khach noi da dong cua hoac het nhu cau: dung han.** Khong chuoi keo lai, khong uu dai.

### Buoc 6 — Chuoi keo lai gan voi ly do da khai

Chi chay cho nguoi da roi that va **da khai ly do**. Noi dung phai tra loi dung ly do do — chuoi chung chung gui cho tat ca la cach nhanh nhat de mat quyen gui tiep.

**Khung 4 diem cham** (dieu chinh theo chu ky mua lai cua nganh):

| Diem cham | Noi dung theo ly do | Kenh |
|-----------|--------------------|------|
| 1 | Cam on + xac nhan da ghi nhan ly do. Khong ban gi. | Zalo OA hoac email |
| 2 | Dieu da thay doi lien quan **truc tiep** den ly do ho khai | Email (dai hon, co bang chung) |
| 3 | De nghi quay lai cu the, co han, khop ly do | Zalo OA (ngan, co nut) |
| 4 | Dong vong: hoi co muon nhan tin nua khong | Email |

**Quy tac phoi hop 2 kenh** — muon nguyen tac da co trong `14-email-marketing`, khong viet lai:
- **Toi da 2 tin Zalo OA / tuan.** Vuot nguong nay thi ti le huy theo doi tang nhanh hon ti le quay lai.
- **Tin cuoi cung chi gui cho nguoi da click** o cac diem cham truoc. Nguoi im lang hoan toan thi dung lai — ho da tra loi bang cach im lang.
- Email chua noi dung dai va bang chung; Zalo OA chua loi de nghi ngan va nut hanh dong. Khong nhoi ca hai vao cung mot kenh.
- Khong gui hai kenh trong cung mot ngay cho cung mot nguoi.

> Neu ly do roi la "chat luong khong nhu ky vong" hoac "da dong cua": **khong dua vao chuoi keo lai**. Ca dau tien can nguoi that xu ly; ca thu hai can duoc de yen.

### Buoc 7 — Do luong 3 chi so + quy tac trung thuc

| Chi so | Cong thuc | Doc the nao |
|--------|-----------|-------------|
| **Ti le mua lai** | So khach co giao dich lai trong ky / so khach du dieu kien mua lai trong ky | Chi so suc khoe nen. Doi chieu voi benchmark nganh trong `references/benchmarks-vietnam.md` |
| **Ti le giu duoc** | So khach da vao luong huy ma o lai / tong so khach vao luong huy | Chi tinh sau khi ap quy tac trung thuc ben duoi |
| **Ti le keo lai** | So khach da roi quay lai mua / so khach nhan chuoi keo lai | Do rieng theo ly do roi — trung binh chung khong noi len dieu gi |

**Quy tac trung thuc (bat buoc khi bao cao):**
- Khach "giu duoc" ma **30 ngay sau van roi thi khong tinh la giu duoc.** Chot so giu duoc voi do tre 30 ngay, khong chot ngay.
- Ghi rieng: giu duoc **co uu dai** va giu duoc **khong uu dai**. Neu gan nhu ca hai deu can uu dai, van de nam o san pham hoac gia, khong nam o luong giu chan.
- Tach ti le keo lai **theo tung ly do**. Neu chuoi keo lai chi hieu qua voi mot ly do duy nhat, dung chi cho ba ly do con lai.

## Cau truc ket qua

Ten file: `giu-chan-khach-hang-[ten-thuong-hieu]-[YYYYMMDD].md`

```markdown
# He Thong Giu Chan — [Thuong hieu]
Mo hinh: [...] | Chu ky mua lai: [... ngay] | Ti le mua lai hien tai: [...]

## 1. Phan nhanh mo hinh
Dinh nghia "mat khach" cho mo hinh nay: [...]
Moc thoi gian dung lam chuan: [...]

## 2. Bang tin hieu sap mat khach
| # | Tin hieu | Do bang gi | Nguong | Rui ro | Ai theo doi |

## 3. Lich can thiep truoc khi mat
| Tin hieu | Moc | Can thiep | Kenh | Nguoi lam | Tan suat kiem tra |

## 4. Khao sat ly do roi
[5-8 lua chon, dung cau chu se hien ra]

## 5. Bang ly do sang uu dai
| Ly do | De nghi chinh | De nghi du phong | Khong lam |

## 6. Ky luat uu dai
[7 quy tac + gioi han cu the ap cho brand nay]

## 7. Chuoi keo lai
| Diem cham | Ly do ap dung | Noi dung | Kenh | Ngay thu |
Quy tac phoi hop 2 kenh: [...]

## 8. Do luong
| Chi so | Cong thuc | So hien tai | Muc tieu ky nay | Ngay chot |
Quy tac trung thuc dang ap dung: [...]
```

## Lien ket skill

- `13-phan-tich-du-lieu`: chay TRUOC — duong cong cohort cho biet khach roi o moc nao, do la can cu dat moc can thiep. Khong co no thi moc chi la doan.
- `14-email-marketing`: chuoi keo lai va chuoi nhac han duoc viet o skill do; skill nay chi quyet dinh gui cho ai, vi ly do gi, vao luc nao. Quy tac phoi hop email + Zalo OA lay tu skill do, khong viet lai.
- `31-offer-design`: uu dai giu chan cung la mot offer — thiet ke no dung chuan o skill do, dung ne ra la "giam vai phan tram".
- `18-referral-program`: khach da giu duoc va hai long la nguon gioi thieu tot nhat — noi tiep vao skill do thay vi de nguoi.
- `09-insight-khach-hang`: ly do roi thu tu khao sat la du lieu tot nhat de cap nhat lai chan dung khach hang.
- `07-bao-cao-marketing`: 3 chi so o Buoc 7 dua vao bao cao thang, kem quy tac trung thuc — khong bao cao so giu duoc chua qua do tre 30 ngay.

## Checklist chat luong

- [ ] Da phan nhanh mo hinh kinh doanh TRUOC khi thiet ke bat ky thu gi khac
- [ ] Da ghi ro dinh nghia "mat khach" rieng cho mo hinh nay va chu ky mua lai dung lam chuan
- [ ] Tin hieu dung du lieu SME thuc su co (lich hen, tin nhan, don hang, danh gia) — khong dung so lieu he thong ma khach khong co
- [ ] Moi tin hieu deu co moc can thiep gan kem, co nguoi lam va co kenh
- [ ] Can thiep som bat dau bang giup do / nhac viec, khong bat dau bang uu dai
- [ ] Khao sat co 5-8 lua chon, dat truoc khi hien uu dai
- [ ] Moi ly do trong bang deu co de nghi chinh, de nghi du phong va muc "khong lam"
- [ ] Ly do "da dong cua / het nhu cau" khong duoc gan bat ky uu dai nao
- [ ] Ky luat day du: khong giam qua 30%, toi da 2 uu dai, tam dung toi da 3 thang
- [ ] Nut "van tiep tuc huy" duoc ghi ro la hien o moi buoc
- [ ] Chuoi keo lai gan voi ly do da khai, chay email + Zalo OA song song, toi da 2 tin Zalo/tuan, tin cuoi chi gui cho nguoi da click
- [ ] Bang do luong co day du 3 chi so va ghi ro quy tac 30 ngay