Sample RabbitmqConfig if you don't have __TypeID__ but have other header (for example : type)

RabbitmqConfig.java

import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.MessagePostProcessor;
import org.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.boot.autoconfigure.amqp.SimpleRabbitListenerContainerFactoryConfigurer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.course.finance.message.invoice.InvoiceCreatedMessage;
import com.course.finance.message.invoice.InvoicePaidMessage;

@Configuration
public class RabbitmqConfig {

    @Bean(name = "rabbitListenerContainerFactory")
    public SimpleRabbitListenerContainerFactory simpleRabbitListenerContainerFactory(
            SimpleRabbitListenerContainerFactoryConfigurer configurer, ConnectionFactory connectionFactory) {
        SimpleRabbitListenerContainerFactory factory = new SimpleRabbitListenerContainerFactory();
        configurer.configure(factory, connectionFactory);

        factory.setAfterReceivePostProcessors(new MessagePostProcessor() {

            @Override
            public Message postProcessMessage(Message message) throws AmqpException {
                var type = message.getMessageProperties().getHeaders().get("type").toString();
                String typeId = null;

                if (StringUtils.equalsIgnoreCase(type, "invoice.paid")) {
                    typeId = InvoicePaidMessage.class.getName();
                } else if (StringUtils.equalsIgnoreCase(type, "invoice.created")) {
                    typeId = InvoiceCreatedMessage.class.getName();
                }

                Optional.ofNullable(typeId).ifPresent(t -> message.getMessageProperties().setHeader("__TypeId__", t));

                return message;
            }

        });

        return factory;
    }

    @Bean
    Jackson2JsonMessageConverter jsonMessageConverter() {
        return new Jackson2JsonMessageConverter();
    }

    @Bean
    RabbitTemplate rabbitTemplate(Jackson2JsonMessageConverter converter, ConnectionFactory connectionFactory) {
        RabbitTemplate template = new RabbitTemplate(connectionFactory);
        template.setMessageConverter(new Jackson2JsonMessageConverter());
        return template;
    }

}