A message is put into an invalid message channel if it can be sent to [] Find centralized, trusted content and collaborate around the technologies you use most. Slack app might have different interface, see Iryna Vernik's answer . In other words, the invalid message channel contains messages that are deemed invalid because of a coding/configuration issue in the sender or the messaging system. A receiver can subscribe to a parent in the hierarchy, then a sender can publish to a new child channel the receiver knows nothing about, and the subscriber will still receive the message. Direct messages are a little bit more complicated. Cause 95 Invalid message, unspecified - This cause is used to report an invalid message event only when no other cause in the invalid message class . But if the messaging system can connect to the application somehowthrough its user interface, its business services API, its database, or through a network connection such as TCP/IP or HTTPthen a Channel Adapter on the messaging system can be used to connect a channel (or set of channels) to the application without having to modify the application and perhaps without having to have a messaging client running on the same machine as the application. It also shows how an invalid message will be rerouted to a special channel. This simple example flow starts immediately using a Timer Start Event, gets the products from ES5 system using a Request-Reply and OData Receiver Adapter. In CPI, well put the messages missing the authentication header in the invalid message channel. Connect and share knowledge within a single location that is structured and easy to search. It appears to be fixed on my end as well. Open the SharePoint site in SharePoint Designer. Technically, its neither; a channel is more like a bucket that some applications add data to and other applications take data from. When the IFrame has loaded, we register an onmessage handler for MessageChannel.port1 and transfer MessageChannel.port2 to the IFrame using the window.postMessage method along with a message. - Rahul Gawale. Im still having an issue with of of my apps. . How do I fix it. A Queue is meant to have only one consumer. Note that if the message generates an application error, then such a message should not be put into an invalid message channel. In this blog, I'll demonstrate Datatype Channel by creating channels for Invoices and Orders. What is the proper etiquette when declining a professor's Capstone project offer after I myself applied for it? One customer reported that he was able to overcome the problem as follows: If you try this, please post here to share the outcome. we pass port2 to the