Hello Albert,

I tried creating a linked instance using the UI and checked the graphql in the developer tools:

mutation CreateAndPublishEntity_catalogItemGroup($parentNode: String!, $parentGid: GID!, $parentProperty: String!, $new: catalogItemGroupNew!) {
  catalogItemGroupCreateAndPublish(
    parentNode: $parentNode
    parentGid: $parentGid
    parentProperty: $parentProperty
    new: $new
  ) {
    aliasMapping {
      gid
      alias
      __typename
    }
    result {
      draftVersion {
        _constraintViolations {
          code
          constraintId
          constraintType
          ... on PropertyConstraintViolation {
            propertyName
            __typename
          }
          ... on PropertiesConstraintViolation {
            propertyNames
            __typename
          }
          __typename
        }
        _displayName
        _draftType
        _from {
          id
          timestamp
          author {
            numericalIdentifier
            ... on Person {
              username
              firstName
              lastName
              email
              userId
              __typename
            }
            ... on Service {
              module
              instanceId
              __typename
            }
            __typename
          }
          __typename
        }
        __typename
      }
      operationsPermissions {
        _operations {
          operation
          __typename
        }
        __typename
      }
      hasDeepDraft
      gid
      nodePath
      parentNodePath
      parentGid
      __typename
    }
    __typename
  }
}

Variables:

{
  "parentNode": "metadata",
  "parentGid": "00000000-0000-0000-0000-000000000001",
  "parentProperty": "catalogItemGroups",
  "new": {
    "targets": [
      {
        "target": {
          "gid": "08664d56-0000-7000-0000-00000008d94a",
          "fixAtLatest": false
        },
        "_alias": "alias-0",
        "_type": "catalogItemGroupTarget"
      },
      {
        "target": {
          "gid": "36ed325c-0000-7000-0000-000000333ced",
          "fixAtLatest": false
        },
        "_alias": "alias-1",
        "_type": "catalogItemGroupTarget"
      }
    ],
    "_alias": "alias-2",
    "_type": "catalogItemGroup"
  }
}

It looks like the entity is called catalogItemGroup with targets embedded array inside, where the target is catalogItemGroupTarget and that contains the ID of the catalogitem.

Let me know if this helps.

Kind regards,

Anna

Hi ​@anna.spakova , thanks a lot, your answer helped me further. Have to remember your approach in this, very convenient.

Kind regards,

Albert