sap event mesh instane creation error -

[kjyothiraditya]

Tutorials: https://developers.sap.com/tutorials/cp-enterprisemessaging-instance-create.html
--------------------------

Hi Experts,

While following this tutorial and during step 1, getting this error during instance creation:

Service broker error: Service broker enterprise-messaging-service-broker failed with: Service broker parameters are invalid: [{"message":"Unrecognized field","propertyPath":"namespace"}]

Can you please help.

Regards,

Aditya

[pradeep_panda]

Hi,

We assume you are trying this in Trial environment. And facing this problem is not it ?

Actually Trial environment does not support "default" message type. Should you have to use Trial environment, then you need to create an instance of "dev" type. Steps remaining the same, the service descriptor will be something like below

{

	"emname": "<your-emname>",
	"options": {
		"management": true,
		"messagingrest": true
	} 

}

Also need to mention here, you will be able to view the link to management screen inline with the event mesh instance detail.

You can try basic messaging tests using "dev" type also. So please go ahead and try it. Should you face any issue, do not hesitate to respond here.

Now if you are in Productive landscape and getting this issue, to start with, can you share the service descriptor file which you have used to create an instance ?

regards

Pradeep

[kjyothiraditya]

Hi pradeep.panda : Yes i am using trial version and using these parameters. Still same error.

[pradeep_panda]

as i see in other thread, things seem to be working....then good

[Tobias_Griebe · Accepted solution]

Hi jyothiraditya.k,

according to the error message I would assume that you are trying to create an Event Mesh instance with the plan "dev" on the trial landscpape. For this you need to use another service descriptor: https://help.sap.com/viewer/bf82e6b26456494cbdd197057c09979f/Cloud/en-US/7e504322652d4791ade0ca2bbc5...

{
	"emname": "<your-emname>",
	"options": {
		"management": true,
		"messagingrest": true
	}
}

Best regards,
Tobias

[kjyothiraditya · Accepted solution]

Hi tobias.griebe : I am using trial version and using these parameters. Still same error.

[Tobias_Griebe · Accepted solution]

Hi jyothiraditya.k,

by using the above service descriptor (you will need to replace the "<your-emname>" with a name of your choice), it is impossible to get the same error as before.

Feel free to post a screenshot of the service descriptor and the error message that you get.

[maheshpalavalli · Accepted solution]

jyothiraditya.k

I recently tried with dev plan in trial environment and with similar parameters, it worked for me. check the below blog post

https://blogs.sap.com/2020/03/03/sap-cloud-application-programming-model-and-enterprise-messaging-1-.../

[kjyothiraditya · Accepted solution]

Oh yes, its fine now. Missed this part "same name is used for emname and instance name as the emname ". Also use the mini version of JSON. However unable to create using rules in the JSON for trial dev plan.