SAP CDS hierarchy view

[JamesG]

Hi experts,

when I define parent and child，i get this error:

someone can help me?

this is me code:

@AbapCatalog.viewEnhancementCategory: [#NONE]
@AccessControl.authorizationCheck: #NOT_REQUIRED
@EndUserText.label: 'test'
@Metadata.ignorePropagatedAnnotations: true
@ObjectModel.usageType:{
    serviceQuality: #X,
    sizeCategory: #S,
    dataClass: #MIXED
}
define view entity zddl_test5 as select from aufm as a
{
    a.bwart,
    a.aufnr,
    a.matnr,
    a.werks,
    a.lgort,
    a.charg,
    @Semantics.quantity.unitOfMeasure: 'ZDDL_TEST5.MEINS'
    a.menge,
    a.meins
}

@AbapCatalog.viewEnhancementCategory: [#NONE]
@AccessControl.authorizationCheck: #NOT_REQUIRED
@EndUserText.label: 'test'
@Metadata.ignorePropagatedAnnotations: true
@ObjectModel.usageType:{
    serviceQuality: #X,
    sizeCategory: #S,
    dataClass: #MIXED
}
@Hierarchy.parentChild: [ { name: 'parent',recurseBy: '_parent' } ]
define view entity zddl_test10 as select from zddl_test5
association [0..*] to zddl_test10 as _PARENT on $projection.matnr = _PARENT.matnr
                                            and $projection.werks = _PARENT.werks
                                            and $projection.lgort = _PARENT.lgort
                                            and $projection.charg = _PARENT.charg
{
    _PARENT,
    aufnr,
    matnr,
    werks,
    lgort,
    charg,
    @Semantics.quantity.unitOfMeasure: 'ZDDL_TEST10.MEINS'
    menge,
    meins
}

define hierarchy zddl_test11
  as parent child hierarchy (
    source zddl_test10
    child to parent association _parent
    siblings order by matnr,werks,lgort,charg ascending
    multiple parents allowed
  )
{    aufnr,
     matnr,
     werks,
     lgort,
     charg,
     menge,
     meins,
    _parent
    
}

Best regards

[Marissa]

Hi qw1391202028,

Could you please confirm if you're working with S/4HANA Cloud 2308? What's your system version?

Thanks,
Marissa

[JamesG]

Hi Marissa,

I‘m working S/4HANA 2022.

Thanks