diff --git a/server/src/reminder.js b/server/src/reminder.js
index c3f64f4..ef387f0 100644
--- a/server/src/reminder.js
+++ b/server/src/reminder.js
@@ -84,14 +84,16 @@ async function runForUser(openid, items, today = new Date()) {
   let halted = false
   let ok = 0, fail = 0, skipped = 0
 
-  const logSkip = (item) => insertLog.run({
+  // errorMsg 默认是「根本没发请求」的兜底文案；真正打了请求并被 43101 拒绝的那一条
+  // 会传入微信返回的原始错误信息，两者都记为 skipped，但 error 字段要能区分开
+  const logSkip = (item, errorMsg = 'quota_exhausted') => insertLog.run({
     anniversaryId: item.anniv.id,
     personName: item.anniv.personName,
     typeName: getTypeName(item.anniv.type, item.anniv.customTypeName),
     daysUntil: item.daysUntil,
     sendDate: Date.now(),
     status: 'skipped',
-    error: 'quota_exhausted'
+    error: errorMsg
   })
 
   for (const item of due) {
@@ -129,8 +131,8 @@ async function runForUser(openid, items, today = new Date()) {
         quota.reset(openid)
         balance = 0
         halted = true
-        logSkip(item); skipped++
-        console.warn(`[reminder] ${openid} 额度已耗尽，本轮剩余全部跳过`)
+        logSkip(item, err.message); skipped++
+        console.warn(`[reminder] ${openid} 额度已耗尽，本轮剩余全部跳过: ${err.message}`)
       } else {
         insertLog.run({
           anniversaryId: anniv.id, personName: anniv.personName, typeName: null,
diff --git a/server/test/reminder.test.js b/server/test/reminder.test.js
index f089f44..8b99163 100644
--- a/server/test/reminder.test.js
+++ b/server/test/reminder.test.js
@@ -103,21 +103,29 @@ test('遇到 43101 立即归零并中止本用户剩余发送', async () => {
   assert.strictEqual(r.skipped, 3, '含失败那条在内全部计为 skipped')
 })
 
-test('非额度类错误只记 failed，不动余额', async () => {
+test('非额度类错误只记 failed，不中止后续发送，也不动余额', async () => {
   resetLogs()
   quota.grant('uE', 4)
+  let called = 0
   const restore = wx.sendSubscribeMessage
   wx.sendSubscribeMessage = async () => {
+    called++
     const e = new Error('网络炸了')
     e.errcode = 40003
     throw e
   }
 
-  const items = [makeAnniv('E1', 'uE', '甲', 'high', 0, 3)]
+  // 至少 2 条数据：如果有人误把 halted = true 加进非额度错误分支，
+  // 第二条就不会被尝试，called 会停在 1，这条断言就能抓到
+  const items = [
+    makeAnniv('E1', 'uE', '甲', 'high', 0, 3),
+    makeAnniv('E2', 'uE', '乙', 'high', 0, 3)
+  ]
   const r = await reminder.runForUser('uE', items, TODAY)
   wx.sendSubscribeMessage = restore
 
-  assert.strictEqual(r.fail, 1)
+  assert.strictEqual(called, 2, '第二条也应被尝试，证明非额度错误不会误中止后续发送')
+  assert.strictEqual(r.fail, 2)
   assert.strictEqual(quota.getBalance('uE'), 4, '配置/网络错误不该动余额')
 })
 
@@ -129,3 +137,42 @@ test('skipped 会写入 remind_logs 便于排查', async () => {
   assert.ok(row, '应写入 skipped 日志')
   assert.strictEqual(row.error, 'quota_exhausted')
 })
+
+// runOnce 是从数据库读数据的（SELECT * FROM anniversaries WHERE remindEnabled = 1），
+// 不能像 runForUser 那样直接传数组，必须真的往临时库插行
+function insertAnniv(id, openid, personName, offsetDays, remindDays) {
+  const d = inDays(offsetDays)
+  db.prepare(`
+    INSERT INTO anniversaries
+      (id, openid, personId, personName, type, isLunar, solarYear, solarMonth, solarDay,
+       importance, remindEnabled, remindDays, createTime, updateTime)
+    VALUES (?, ?, 'p', ?, 'birthday', 0, ?, ?, ?, 'high', 1, ?, 0, 0)
+  `).run(id, openid, personName, d.getFullYear(), d.getMonth() + 1, d.getDate(), remindDays)
+}
+
+test('runOnce 按 openid 分组结算，各用户额度互不影响', async () => {
+  resetLogs()
+  // 会读到库里所有 remindEnabled=1 的行，先清空避免受其它用例残留数据干扰
+  db.prepare('DELETE FROM anniversaries').run()
+
+  quota.grant('uG', 5) // uG 有额度
+  // uH 不 grant，余额保持 0
+
+  insertAnniv('G1', 'uG', '甲', 0, 3) // 今天到期
+  insertAnniv('H1', 'uH', '乙', 0, 3) // 今天到期
+
+  let called = 0
+  const restore = wx.sendSubscribeMessage
+  wx.sendSubscribeMessage = async () => { called++; return { errcode: 0 } }
+
+  const r = await reminder.runOnce()
+  wx.sendSubscribeMessage = restore
+
+  assert.strictEqual(r.total, 2)
+  assert.strictEqual(r.ok, 1, '有额度的 uG 应正常发出')
+  assert.strictEqual(r.skipped, 1, '没额度的 uH 应被跳过')
+  assert.strictEqual(r.fail, 0)
+  assert.strictEqual(called, 1, '没额度的用户不该真的发起请求，两用户不能互相借额度')
+  assert.strictEqual(quota.getBalance('uG'), 4, 'uG 消费后余额正确减少')
+  assert.strictEqual(quota.getBalance('uH'), 0, 'uH 的余额不受 uG 影响')
+})
diff --git a/server/test/wx.test.js b/server/test/wx.test.js
new file mode 100644
index 0000000..24b39a7
--- /dev/null
+++ b/server/test/wx.test.js
@@ -0,0 +1,35 @@
+const test = require('node:test')
+const assert = require('node:assert')
+const { useTempDb } = require('./helper')
+
+// wx.js 本身不连库，但按项目约定统一在 require 业务模块前处理好临时库，
+// 避免以后 wx.js 引入了连库逻辑时这份测试悄悄读写到真实数据库。
+useTempDb()
+
+const axios = require('axios')
+const wx = require('../src/wx')
+
+test('微信返回非 0 errcode 时，抛出的 Error 对象应带上原始 errcode', async () => {
+  const restoreGet = axios.get
+  const restorePost = axios.post
+
+  // getAccessToken 走 axios.get，sendSubscribeMessage 走 axios.post，两个都要 mock
+  axios.get = async () => ({ data: { access_token: 'fake_token', expires_in: 7200 } })
+  axios.post = async () => ({ data: { errcode: 43101, errmsg: 'user refuse to accept the msg' } })
+
+  await assert.rejects(
+    () => wx.sendSubscribeMessage({
+      touser: 'oTest',
+      page: 'pages/index/index',
+      templateId: 'tplTest',
+      data: {}
+    }),
+    (err) => {
+      assert.strictEqual(err.errcode, 43101, 'Error 对象应带上微信返回的原始 errcode，而不是靠字符串匹配')
+      return true
+    }
+  )
+
+  axios.get = restoreGet
+  axios.post = restorePost
+})