diff --git a/src/puppet-padchat/padchat-rpc.ts b/src/puppet-padchat/padchat-rpc.ts
index 4d43b29d49fe6e0e361efde24490893907528aeb..de7ad71d7e9e974a5495cc0663397bce2af540cb 100644
--- a/src/puppet-padchat/padchat-rpc.ts
+++ b/src/puppet-padchat/padchat-rpc.ts
@@ -324,7 +324,7 @@ export class PadchatRpc extends EventEmitter {
 
   private async rpcCall(
     apiName   : string,
-    ...params : (string | WXSearchContactTypeStatus)[]
+    ...params : string[]
   ): Promise<any> {
     log.silly('PadchatRpc', 'rpcCall(%s, %s)', apiName, JSON.stringify(params).substr(0, 500))
     return await this.jsonRpc.request(apiName, params)
@@ -851,7 +851,13 @@ export class PadchatRpc extends EventEmitter {
   }
 
   public async WXAddUser(strangerV1: string, strangerV2: string, type: WXSearchContactTypeStatus, verify: string): Promise<any> {
-    const result = await this.rpcCall('WXAddUser', strangerV1, strangerV2, type, verify)
+    const result = await this.rpcCall(
+      'WXAddUser',
+      strangerV1,
+      strangerV2,
+      String(type),
+      verify,
+    )
     log.silly('PadchatRpc', 'WXAddUser result: %s', JSON.stringify(result))
     return result
   }
diff --git a/src/puppet-padchat/pure-function-helpers/is-type.ts b/src/puppet-padchat/pure-function-helpers/is-type.ts
index 63a958d35025161a878226070beea8e1230162a9..ebd9d4e5adc20ab328b532082e123689f8697530 100644
--- a/src/puppet-padchat/pure-function-helpers/is-type.ts
+++ b/src/puppet-padchat/pure-function-helpers/is-type.ts
@@ -1,34 +1,39 @@
 export function isRoomId(id?: string): boolean {
   if (!id) {
-    throw new Error('no id')
+    // throw new Error('no id')
+    return false
   }
   return /@chatroom$/.test(id)
 }
 
 export function isContactId(id?: string): boolean {
   if (!id) {
-    throw new Error('no id')
+    return false
+    // throw new Error('no id')
   }
   return !isRoomId(id)
 }
 
 export function isContactOfficialId(id?: string): boolean {
   if (!id) {
-    throw new Error('no id')
+    return false
+    // throw new Error('no id')
   }
   return /^gh_/i.test(id)
 }
 
 export function isStrangerV1(strangerId?: string): boolean {
   if (!strangerId) {
-    throw new Error('no id')
+    return false
+    // throw new Error('no id')
   }
   return /^v1_/i.test(strangerId)
 }
 
 export function isStrangerV2(strangerId?: string): boolean {
   if (!strangerId) {
-    throw new Error('no id')
+    return false
+    // throw new Error('no id')
   }
   return /^v2_/i.test(strangerId)
 }
diff --git a/src/puppet-padchat/pure-function-helpers/room-event-message-parser.join.en.spec.ts b/src/puppet-padchat/pure-function-helpers/room-event-message-parser.join.en.spec.ts
index e89bc707eb9ff8fa1fa9b07eb633f7398636165e..b04b694148e3da9693a5c26f6a8197d5155ba9e9 100755
--- a/src/puppet-padchat/pure-function-helpers/room-event-message-parser.join.en.spec.ts
+++ b/src/puppet-padchat/pure-function-helpers/room-event-message-parser.join.en.spec.ts
@@ -141,8 +141,8 @@ test('roomJoinEventMessageParser() EN-bot-invite-other', async t => {
   t.deepEqual(event, EXPECTED_EVENT, 'should parse event')
 })
 
-test('roomJoinEventMessageParser() EN-bot-invite-others', async t => {
-  t.skip('should be the same as the bot-invite-other')
+test('roomJoinEventMessageParser() EN-bot-invite-many', async t => {
+  t.skip('should be the same as the bot-invite-many')
 })
 
 test('roomJoinEventMessageParser() EN-room-create', async t => {
diff --git a/src/puppet-padchat/pure-function-helpers/room-event-message-parser.join.zh.spec.ts b/src/puppet-padchat/pure-function-helpers/room-event-message-parser.join.zh.spec.ts
index dbea9308f2f7c6a48291964ae345a713067a940c..c31cdd26575dec4a0016505c8da099ff05214198 100755
--- a/src/puppet-padchat/pure-function-helpers/room-event-message-parser.join.zh.spec.ts
+++ b/src/puppet-padchat/pure-function-helpers/room-event-message-parser.join.zh.spec.ts
@@ -38,7 +38,7 @@ test('roomJoinEventMessageParser() ZH-other-invite-other', async t => {
   }
 
   const event = roomJoinEventMessageParser(MESSAGE_PAYLOAD)
-  console.log('payload:', event)
+  // console.log('payload:', event)
   t.deepEqual(event, EXPECTED_EVENT, 'should parse room join message payload')
 })
 
@@ -72,7 +72,7 @@ test('roomJoinEventMessageParser() ZH-other-invite-bot', async t => {
   t.deepEqual(event, EXPECTED_EVENT, 'should parse event')
 })
 
-test('roomJoinEventMessageParser() ZH-other-invite-bot-with-others', async t => {
+test('roomJoinEventMessageParser() ZH-other-invite-bot-with-other', async t => {
   const MESSAGE_PAYLOAD: PadchatMessagePayload = {
     content     : '"李卓桓"邀请你和"Huan LI++"加入了群聊',
     continue    : 1,
@@ -97,7 +97,7 @@ test('roomJoinEventMessageParser() ZH-other-invite-bot-with-others', async t =>
   t.deepEqual(event, EXPECTED_EVENT, 'should parse event')
 })
 
-test('roomJoinEventMessageParser() ZH-bot-invite-other', async t => {
+test('roomJoinEventMessageParser() ZH-bot-invite-one', async t => {
   const MESSAGE_PAYLOAD: PadchatMessagePayload = {
     content     : '5354656522@chatroom:\n<sysmsg type="delchatroommember">\n\t<delchatroommember>\n\t\t<plain><![CDATA[你邀请"Huan LI++"加入了群聊  ]]></plain>\n\t\t<text><![CDATA[你邀请"Huan LI++"加入了群聊  ]]></text>\n\t\t<link>\n\t\t\t<scene>invite</scene>\n\t\t\t<text><![CDATA[  撤销]]></text>\n\t\t\t<memberlist>\n\t\t\t\t<username><![CDATA[wxid_5zj4i5htp9ih22]]></username>\n\t\t\t</memberlist>\n\t\t</link>\n\t</delchatroommember>\n</sysmsg>\n',
     continue    : 1,
@@ -122,7 +122,7 @@ test('roomJoinEventMessageParser() ZH-bot-invite-other', async t => {
   t.deepEqual(event, EXPECTED_EVENT, 'should parse event')
 })
 
-test('roomJoinEventMessageParser() ZH-bot-invite-others', async t => {
+test('roomJoinEventMessageParser() ZH-bot-invite-three', async t => {
   t.skip('tbw')
 })
 
diff --git a/src/puppet-padchat/pure-function-helpers/room-event-message-parser.spec.ts b/src/puppet-padchat/pure-function-helpers/room-event-message-parser.spec.ts
index f59ee24059a855a2b830f2e4bf390fa2e3ac44c8..fd1601712d3313d44a5a2483e57967fdedba2e16 100755
--- a/src/puppet-padchat/pure-function-helpers/room-event-message-parser.spec.ts
+++ b/src/puppet-padchat/pure-function-helpers/room-event-message-parser.spec.ts
@@ -122,7 +122,7 @@ test('splitChineseNameList()', async t => {
   const EXPECTED_LIST = ['李卓桓', '李佳芮', '桔小秘']
 
   const list = splitChineseNameList(TEXT)
-  t.equal(list, EXPECTED_LIST, 'should split chinese name list')
+  t.deepEqual(list, EXPECTED_LIST, 'should split chinese name list')
 })
 
 test('splitEnglihshNameList()', async t => {
@@ -130,5 +130,5 @@ test('splitEnglihshNameList()', async t => {
   const EXPECTED_LIST = ['Zhuohuan', '李佳芮', '太阁_传话助手']
 
   const list = splitEnglishNameList(TEXT)
-  t.equal(list, EXPECTED_LIST, 'should split english name list')
+  t.deepEqual(list, EXPECTED_LIST, 'should split english name list')
 })
diff --git a/src/puppet-padchat/pure-function-helpers/room-event-message-parser.ts b/src/puppet-padchat/pure-function-helpers/room-event-message-parser.ts
index c6ddb9357cfa8b9d9924175910e63d4b3cffaaae..2dddd90e573dddae16dc16347a4e664864aa504a 100644
--- a/src/puppet-padchat/pure-function-helpers/room-event-message-parser.ts
+++ b/src/puppet-padchat/pure-function-helpers/room-event-message-parser.ts
@@ -85,11 +85,27 @@ export function roomJoinEventMessageParser(
    * when the message is a Recalled type, bot can undo the invitation
    */
   if (rawPayload.sub_type === PadchatMessageType.Recalled) {
+    /**
+     * content:
+     * ```
+     * 3453262102@chatroom:
+     * <sysmsg type="delchatroommember">
+     *   ...
+     * </sysmsg>
+     * ```
+     */
+    const tryXmlText = content.replace(/^[^\n]+\n/, '')
     interface XmlSchema {
-      plain: string,
+      sysmsg: {
+        type: string,
+        delchatroommember: {
+          plain: string,
+          text: string,
+        },
+      }
     }
-    const jsonPayload = toJson(content, { object: true }) as XmlSchema
-    content = jsonPayload.plain
+    const jsonPayload = toJson(tryXmlText, { object: true }) as XmlSchema
+    content = jsonPayload.sysmsg.delchatroommember.plain
   }
 
   let matchesForBotInviteOtherEn   = null as null | string[]