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sandhyan139121
March 30, 2022
Question

Error using Start Process Link in an Interface

  • March 30, 2022
  • 11 replies
  • 1 view

Hi,

I am trying to use startProcessLink in a grid view Interface so that an user can edit the selected record by selecting a location Name. This is my first time using this method. 

When I am selecting an entry, I am getting an error message:

 An Error Has Occurred No process parameter found corresponding to override [name=pv!locationId]. Non-parameter process variables cannot be overridden.

a!gridColumn(
        label: "Location Name",
        sortField: "description",
        value: a!linkField(
          links: {
            a!startProcessLink(
              label: fv!row.description,
              processModel: cons!BC_PM_ADD_LOCATION,
              processParameters: { locationId: fv!row.locationId }
            )
          }
        ),

My process model is working fine. So how and where do I fix it? 

Please advice me. 

Thanks

    11 replies

    stefanhelzle0001
    stefanhelzle0001
    Brainy
    March 30, 2022

    Define the process variables in the model as parameters. Check process model properties to do so.

    S
    sandhyan139121Author
    March 30, 2022

    Hi Stefan, 

    Should I use both the below parameters in the process link? (processParameters: { locationId: fv!row.locationId })

    Thanks

    stefanhelzle0001
    stefanhelzle0001
    Brainy
    March 30, 2022

    Not sure. Depends on what you want to do.

    Keep in mind that the data must match. The process variable is of a CDT type and the data passed in is just an ID. That will not work.

    danny.verb
    danny.verb
    March 30, 2022

    Have you marked the variable 'locationId' as a parameter?

    Also, for your use case I recommend looking into record actions https://docs.appian.com/suite/help/20.3/Record_Action_Component.html

    It's a much better design pattern and allows your uses to open forms in dialogs instead of a new page.

    Also, I recommend setting your form as a Start Form

    S
    sandhyan139121Author
    March 30, 2022

    Hi Danny, 

    Thank you for your inputs. I haven't marked Location Id as a parameter. I have location parameter of CDT type and cancel as parameters. 

    I tried using the record action but not able to pull in the action in my interface. I manually typed the name manageLocations.

    I am getting the error: Could not display interface. Please check definition and inputs. Interface Definition: Expression evaluation error at function a!recordActionField [line 4]: Invalid index: Cannot index property 'actions' of type Text into type RecordType

    a!recordActionField(
      actions:{
        a!recordActionItem(
          action: 'recordType!{853ab9ac-cf5f-4aa8-950b-97bb7de9adab}BC Location'.actions.manageLocations
        ),
        
      },
      
    )

    Also, you mean to say that I should add the below form as start form?  or the add/edit form as start form? Please clarify. 

    Thanks

    S
    sandhyan139121Author
    March 30, 2022

    Hi,

    I fixed the record action problem. 

    But I still want to know how to pass process parameters in process link in an interface in my case? 

    Thanks

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