diff --git a/business/jxstore/cms/user.go b/business/jxstore/cms/user.go
index ab954ed57..acfc68bb4 100644
--- a/business/jxstore/cms/user.go
+++ b/business/jxstore/cms/user.go
@@ -114,7 +114,10 @@ func BindMobile2Store(ctx *jxcontext.Context, mobile string, storeID int) (num i
 	if err = err2; err == nil || err == orm.ErrNoRows {
 		user.JxStoreID = storeID
 		if err == nil {
-			num, err = dao.UpdateEntity(db, user, "JxStoreID")
+			// todo transaction
+			if num, err = dao.UpdateEntity(db, user, "JxStoreID"); err == nil {
+				err = dao.SetWeiXinsEmpty2Null(db, user)
+			}
 		} else {
 			user.ParentID = -1
 			if err = dao.CreateWeiXins(db, user); err == nil {
@@ -137,7 +140,10 @@ func AddMobile2Mobile(ctx *jxcontext.Context, parentMobile, mobile string) (num
 				if err = err2; err == nil || err == orm.ErrNoRows {
 					user.ParentID = parentUser.ID
 					if err == nil {
-						num, err = dao.UpdateEntity(db, user, "ParentID")
+						// todo transaction
+						if num, err = dao.UpdateEntity(db, user, "ParentID"); err == nil {
+							err = dao.SetWeiXinsEmpty2Null(db, user)
+						}
 					} else {
 						if err = dao.CreateWeiXins(db, user); err == nil {
 							num = 1
diff --git a/business/model/dao/dao_user.go b/business/model/dao/dao_user.go
index d0fdf8464..7f15f0fd3 100644
--- a/business/model/dao/dao_user.go
+++ b/business/model/dao/dao_user.go
@@ -10,7 +10,16 @@ func CreateWeiXins(db *DaoDB, user *legacymodel.WeiXins) (err error) {
 		Rollback(db)
 		return err
 	}
-	if _, err = ExecuteSQL(db, `
+	if err = SetWeiXinsEmpty2Null(db, user); err != nil {
+		Rollback(db)
+		return err
+	}
+	Commit(db)
+	return err
+}
+
+func SetWeiXinsEmpty2Null(db *DaoDB, user *legacymodel.WeiXins) (err error) {
+	_, err = ExecuteSQL(db, `
 	UPDATE weixins
 	SET
 	openid = IF(openid = '', NULL, openid),
@@ -19,11 +28,7 @@ func CreateWeiXins(db *DaoDB, user *legacymodel.WeiXins) (err error) {
 	tel = IF(tel = '', NULL, tel),
 	parentid = IF(parentid = 0, -1, parentid)
 	WHERE id = ?
-	`, user.ID); err != nil {
-		Rollback(db)
-		return err
-	}
-	Commit(db)
+	`, user.ID)
 	return err
 }