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JMS sender communication channel Issue when picking the messages from MQ

Hi Experts,

My scenario is JMS to Proxy [Nfe] and we are on SAP PI 7.0.

Issue : JMS sender communication channel is not picking the messages from MQ.

Error in moni : Negative acknowledgement triggered by the process.

Note : We are using the same queue for other interfaces and we can able to pick the messages. We are facing issue with only one interface.

We have performed the following steps to fix the issue.

--> Restarted the communication channel.

--> Cleared the cache.

--> Deleted the communication channel.

--> Created background jobs to start and stop the communication channel.

--> Set additional parameter Connection_Test_Poll =true in the communication channel.

Please help me to fix the issue.

Thanks in advance.


Bhargava Krishna

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  • Posted on Jul 05, 2016 at 02:27 PM

    Hi Bhargava,

    Can you please let us know what is your scenario. If its just JMS to proxy and if the JMS sender channel is not picking, how you are able to see the error in MONI.?

    Nfe scenarios usually involves BPM which might be triggering the negative acknowledgement.

    I would suggest to check the BPM Workflow log to see where the actual issue is. Also, please provide the complete scenario details so that we can try to help further.



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    • Hi Priyanka,

      We have created separate queue specific to event cancellation interface and tested the interface end to end. PI JMS sender communication channel can be able to picked one response message and from the 2nd message it is giving the same error 😔 [PI not able to pick the message from response queue].

      We tried all the possibilities to fix the issue.

      --> Restarted the communication channels.

      --> Cleared the stuck messages in WMQ.

      --> Created Dedicated queue for events interface.

      --> Activated the channel with dummy changes.

      --> Deleted and recreated the communication channel.

      --> Rechecked the configuration.

      --> No error identified in the JMS sender communication channel.

      Issue fixed after restarting the SAP PI server 😊


      Bhargava Krishna