Help Center/ Distributed Message Service for RocketMQ/ API Reference/ APIs V2 (Recommended)/ Message Management/ Resending Dead Letter Messages
Updated on 2026-04-30 GMT+08:00
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Resending Dead Letter Messages

Function

Resending dead letter messages

URI

POST /v2/{engine}/{project_id}/instances/{instance_id}/messages/deadletter-resend

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

engine

Yes

String

Definition

Message engine.

Constraints

N/A

Range

N/A

Default Value

N/A

project_id

Yes

String

Definition

Project ID. For details about how to obtain it, see Obtaining a Project ID.

Constraints

N/A

Range

N/A

Default Value

reliability

instance_id

Yes

String

Definition

Instance ID. You can call the API for querying all instances to obtain the instance ID. The instance ID is in the response body.

Constraints

N/A

Range

N/A

Default Value

N/A

Request Parameters

Table 2 Request body parameters

Parameter

Mandatory

Type

Description

topic

No

String

Definition

Topic name.

Constraints

N/A

Range

N/A

Default Value

N/A

msg_id_list

No

Array of strings

Definition

Message list.

Constraints

N/A

Range

N/A

Default Value

N/A

Response Parameters

Status code: 200

Table 3 Response body parameters

Parameter

Type

Description

resend_results

Array of resend_results objects

Definition

Result of resending a dead letter message.

Constraints

N/A

Range

N/A

Default Value

N/A
Table 4 resend_results

Parameter

Type

Description

msg_id

String

Definition

Message ID.

Constraints

N/A

Range

N/A

Default Value

N/A

error_code

String

Definition

Error code.

Constraints

N/A

Range

N/A

Default Value

N/A

error_message

String

Definition

Error message.

Constraints

N/A

Range

N/A

Default Value

N/A

Example Requests

Resending dead letter messages

POST https://{endpoint}/v2/{engine}/{project_id}/instances/{instance_id}/messages/deadletter-resend

{
  "topic" : "%DLQ%group1",
  "msg_id_list" : [ "id1" ]
}

Example Responses

Status code: 200

Dead letter messages resent.

{
  "resend_results" : [ {
    "msg_id" : "C0A8149E0000277600000000000B6835",
    "error_code" : "DMS.00000000",
    "error_message" : "Success."
  } ]
}

Status Codes

Status Code

Description

200

Dead letter messages resent.

Error Codes

See Error Codes.

Parent Topic: Message Management