# MQRC 2027: Reply-to queue missing

Source: https://wndsoftware.com/mainframe-errors/mqrc-2027

### MQRC 2027: Reply-to queue missing

MQRC 2027 means a request or report needs a reply queue but MQMD.ReplyToQ is blank. Check message type and report options before retrying the put.


#### Other names for this code

Also written as `RC2027`, `reason code 2027`, `MQ error 2027`, `MQRC_MISSING_REPLY_TO_Q`, `07EB`, `0x07EB`.


### What it means

MQPUT or MQPUT1 was asked to send a message whose settings require somewhere to return a reply or report. The descriptor supplies no reply queue. IBM identifies two triggers: MQMT_REQUEST and report requests in the MQMD Report field.

A destination queue for the outgoing business message does not automatically become its reply queue. The sender must supply a return destination appropriate to the application design.


#### A troubleshooting example

A support change enables exception reports on outgoing payment requests. The normal flow previously used no replies, so ReplyToQ remains blank. Every put now fails with 2027. Compare the before-and-after descriptor settings and choose an approved report queue. Send a test request that deliberately triggers a report and confirm the sender can consume it. Checking only that the outbound put succeeds would leave the new report path untested.


### Common causes

- The application changes a message from a datagram to a request without populating ReplyToQ.
- A diagnostic report option is enabled while the existing descriptor has no return address.
- A dynamic reply queue was created, but its actual name was not copied into the outgoing descriptor.


### How to find the problem

- Inspect MsgType, Report, ReplyToQ and ReplyToQMgr immediately before the failing put. Log descriptor settings separately from payload text.
- Trace the code path that enables request or report behavior. Compare it with a successful datagram path using the same destination.
- If a model queue is involved, distinguish the model's name from the created dynamic queue name returned by MQOPEN.
- Confirm the receiver's reply contract and the sender's receive setup. A nonblank but unusable return address only moves the failure later.


### How to fix it

- Set ReplyToQ to the real queue that will receive the reply or report. Use the actual created name when using a dynamic queue.
- If the application does not need replies or reports, correct the message type or report configuration according to its interface contract.
- Test an end-to-end reply, including identifiers, queue lifetime and permissions. Retrying the original unchanged descriptor will reproduce 2027.


### What it looks like


```text
Illustrative diagnostic notes; not an IBM message template.
MQMD.MsgType = MQMT_REQUEST
MQMD.ReplyToQ = blanks
MQPUT Reason=2027
Set a real return destination before retry.
```


### IBM documentation

[IBM MQ 9.4: 2027 MQRC_MISSING_REPLY_TO_Q](https://www.ibm.com/docs/en/ibm-mq/9.4.x?topic=codes-2027-07eb-rc2027-mqrc-missing-reply-q). Use the documentation for your installed release.

[Report a correction to WND Software](https://wndsoftware.com/contact#message).

Technical reviewer: [Albert Joseph](https://wndsoftware.com/authors/albert-joseph), WND Software.

Updated 2026-10-23. IBM documentation checked for this article. Written in our own words. For the full reference, check IBM’s MQ documentation for your version.


### Related codes

[MQRC 2057 MQRC_Q_TYPE_ERROR Read →](https://wndsoftware.com/mainframe-errors/mqrc-2057)
[MQRC 2048 MQRC_PERSISTENT_NOT_ALLOWED Read →](https://wndsoftware.com/mainframe-errors/mqrc-2048)
[MQRC 2026 MQRC_MD_ERROR Read →](https://wndsoftware.com/mainframe-errors/mqrc-2026)

### Questions


#### Can ReplyToQ contain the model queue name?

Use the actual queue that will receive the reply. A model is a template; using it as a reply destination can produce MQRC 2057.


#### Why did reports cause 2027 on a datagram?

A requested report also needs a return queue. Review Report as well as MsgType when inspecting the descriptor.

[IBM MQ reason codes](https://wndsoftware.com/mainframe-errors/mq-reason-codes) · [MQRC 2026](https://wndsoftware.com/mainframe-errors/mqrc-2026) · [MQRC 2030](https://wndsoftware.com/mainframe-errors/mqrc-2030)

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