|  | @@ -1231,7 +1231,13 @@ public class TeacherServiceImpl extends ServiceImpl<TeacherDao, Teacher> impleme
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				|  |  |      }
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				|  |  |  
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				|  |  |      private void sendBindUnBindSMS(Long userId, String phone, MessageTypeEnum messageType, Long tenantId) {
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				|  |  | +        if (tenantId == null ){
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				|  |  | +            return;
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				|  |  | +        }
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				|  |  |          TenantInfo tenantInfo = tenantInfoService.getById(tenantId);
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				|  |  | +        if (tenantInfo == null) {
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				|  |  | +            return;
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				|  |  | +        }
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				|  |  |          Map<Long, String> receivers = new HashMap<>();
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				|  |  |          receivers.put(userId, phone);
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				|  |  |          sysMessageService.batchSendMessage(MessageSenderPluginContext.MessageSender.AWSMS, messageType,
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