REST API Attribute Update fails without attribute_id

[cmuench]

Preconditions and environment

1. Magento 2.4.8-p3
2. REST API enabled

Steps to reproduce

Update without attribute_id

1. Send a PUT request to /V1/products/attributes/{attributeCode}.
2. In the payload, include attribute_code but omit attribute_id.

Can be tested e.g. with the "color" attribute.

Expected result

The API should recognize the existing attribute by attribute_code from the URL and perform an update.

Actual result

Response 400 Bad Request:

{
  "message": "%1 already exists.",
  "parameters": [
    "Attribute with the same code"
  ]
}

Additional information

No response

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

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[m2-assistant]

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[engcom-Bravo]

Hi @cmuench,

Thanks for your reporting and collaboration.

We have tried to reproduce the issue in Latest 2.4-develop instance and we are not able to reproduce the issue.Could you please share the payload which you were facing the issue.

Thanks.

[cmuench]

@engcom-Bravo It can be re-produced in a empty installation by using the color attribute.

That's a request that I used in my Commerce PaaS sandbox.

This request leads to the error:

curl --request PUT \
  --url https://{{BASE_URL}}/rest/all/V1/products/attributes/color \
  --header 'authorization: Bearer {{auth_token}}' \
  --header 'content-type: application/json' \
  --data '{
  "attribute": {
    "attribute_code": "color",
    "entity_type_id": "4",
    "is_wysiwyg_enabled": false,
    "is_html_allowed_on_front": false,
    "used_for_sort_by": false,
    "is_filterable": true,
    "is_filterable_in_search": false,
    "is_used_in_grid": true,
    "is_visible_in_grid": false,
    "is_filterable_in_grid": true,
    "position": 0,
    "apply_to": [
      "simple",
      "virtual",
      "configurable"
    ],
    "is_searchable": "1",
    "is_visible_in_advanced_search": "1",
    "is_comparable": "1",
    "is_used_for_promo_rules": "0",
    "is_visible_on_front": "0",
    "used_in_product_listing": "0",
    "is_visible": true,
    "scope": "global",
    "frontend_input": "select",
    "is_required": false,
    "options": [
      {
        "label": " ",
        "value": ""
      },
      {
        "label": "rot",
        "value": "15"
      },
      {
        "label": "grün",
        "value": "16"
      },
      {
        "label": "blau",
        "value": "17"
      }
    ],
    "is_user_defined": true,
    "default_frontend_label": "Color",
    "frontend_labels": null,
    "backend_type": "int",
    "backend_model": "Magento\\Eav\\Model\\Entity\\Attribute\\Backend\\DefaultBackend",
    "source_model": "Magento\\Eav\\Model\\Entity\\Attribute\\Source\\Table",
    "default_value": "",
    "is_unique": "0",
    "validation_rules": []
  }
}'

Result:

{"message":"%1 already exists.","parameters":["Attribute with the same code"]}