diff --git a/yunkes/src/api/index.ts b/yunkes/src/api/index.ts
index a40e9bd..ee5a7f4 100644
--- a/yunkes/src/api/index.ts
+++ b/yunkes/src/api/index.ts
@@ -37,7 +37,10 @@ export interface CustomerQuery {
   page?: number
   page_size?: number
   owner_account_id?: string
+  user_id?: string
   department_id?: string
+  add_time_since?: number
+  last_chat_since?: number
 }
 
 export function getCustomers(query: CustomerQuery = {}): Promise<Page<Customer>> {
@@ -48,7 +51,10 @@ export function getCustomers(query: CustomerQuery = {}): Promise<Page<Customer>>
       page_size: query.page_size ?? 20,
       channel: query.channel === 'all' ? undefined : query.channel,
       owner_account_id: query.owner_account_id,
+      user_id: query.user_id,
       department_id: query.department_id,
+      add_time_since: query.add_time_since,
+      last_chat_since: query.last_chat_since,
     }),
   )
 }
diff --git a/yunkes/src/api/types.ts b/yunkes/src/api/types.ts
index 476dd3e..daae9d3 100644
--- a/yunkes/src/api/types.ts
+++ b/yunkes/src/api/types.ts
@@ -30,6 +30,8 @@ export interface Customer {
   head_image_url?: string | null
   /** ms-epoch of most recent message */
   last_chat_time?: number | null
+  /** ms epoch of friend add time (from raw_json.addTime). */
+  add_time?: number | null
   message_count?: number | null
   version?: string | null
   /**