Error executing Webservice for Process Start via Web Dynpro

Hi Community,
I have a strange issue when executing a webservice that starts a process using web Dynpro. I have configured, the Service Group, the Communication profile.
When I try to execute the Service via Web Dynpro, I get the following exception which is in my opinion fully missleading and does not make sense to me. As the Authentication Profile and the Communication profile allow the same Authentication Methods.
com.sap.esi.esp.lib.mm.config.exceptions.TechnicalException: Failed to create Logical Port for Service Reference with id [YourID here].
Reason for the failure is that no one of the following Authentication Methods [None], [SAP Logon Ticket], or [SAML Assertion] is allowed in the related Communication Profile.
Such an Authentication Method is needed as the Authenticaton Profile is [businessOrTechnicalUser] and no User Account is assigned, so the Authenticaton Profile is considered to be noAuthentication or businessUser.
Related Communication Profile is [SAP_DEFAULT_PROFILE 1] and it allows Authentication Method(s) [User Name/Password (Basic), X.509 Client Certificate, SAP Logon Ticket, SAML Assertion, X.509 Certificate Doc.Auth., User Name/Password Doc.Auth.]
Thanks for your support.
Best Regards Nicolas

Hi Nicolas,
make sure you have
- assigned a communication profile (with no- or basic authentication) to the provided service
- created a provider system with a similar profile
- assigned the provider system to the (consumer) service group
For a full guide on service configuration please check this article:
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/40dabb46-dd66-2b10-1a9a-81aa620098b3
Best Regards,
Christian

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Hi ,
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Hello, workflow community!
I'm working on a task which allow to trigger the workflow by clicking a button in Web Dynpro UI. As always, there are multiple ways to do that, for instance, to use SAP Workflow API (SAP_WAPI_START_WORKFLOW) or to raise an event upon the button click, which will be caught by workflow template.
In my opinion, the optimal solution is to call FM, which will call ABAP-class, raising an event, which, in turn, will be caught by workflow template. In this case, FM will service kind of wrapper, where we can implement some additional checks if needed.
But the question is what approach is the best practice — to raise an event or use SAP_WAPI_*?
Thanks.

let combine, use SAP_WAPI_CREATE_EVENT
usually I would not recommend creating a workflow directly (SAP_WAPI_START_WORKFLOW) since when I look for workflows in a system I usually start from SWE2 (the event linkage) which uses events so the workflow you start by SAP_WAPI_START_WORKFLOW will not be seen there, also SWE2 gives you better control for starting the workflow, you can easily deactivate an event linkage. finding where you called the workflow by SAP_WAPI_START_WORKFLOW will be more difficult and deactivation will require a code change.
so use events, and start them by SAP_WAPI_CREATE_EVENT
Also pay attention that you have a check function module option in SWE2.

Error executing Webservice for Process Start via Web Dynpro

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