POST /item/bulk errors

We can't seem to make the endpoint for posting new items in bulk work anymore:

```
<?xml version=\"1.0\"?>
2026-04-01T21:54:07.286414550Z Link (https) error occurred400Bad Request
```

We see this very error message, even when the same item can be uploaded as a single item to the `POST /item` endpoint.

Hi fnwbr,

Do you have the POST data you're trying to use for which you get the error?

Fred

Hello Fred,

I have the same bulk API issue. Thank you for asking for POST data - here are my findings that confirm the problem:

Problem:
POST /item/bulk endpoint has not been working for several days now (HTTP 400 Bad Request), while POST /item for individual items continues to work perfectly.

Test POST Data for Bulk Request:

type=fixedPrice
items[0][id_country]=2
items[0][id_category]=710
items[0][fixed_price]=1.0
items[0][currency]=EUR
items[0][title]=TEST BULK ITEM
items[0][personal_reference]=TEST_BULK_1744823456
items[0][qty]=1
items[0][duration]=10
items[0][description]=Test item for bulk API


Comparison - Working Single Request:

type=fixedPrice
item[id_country]=2
item[id_category]=710
item[fixed_price]=1.0
item[currency]=EUR
item[title]=TEST SINGLE
item[personal_reference]=TEST_SINGLE_1744823456
item[qty]=1
item[duration]=10
item[description]=Test single item


Response from Bulk Endpoint:

<?xml version="1.0"?>

Link (https)
An error occurred
400
Bad Request



Response from Single Endpoint (for comparison):
Works correctly with valid validation messages for missing fields.

Additional Tests Performed:
1. Bulk request without 'type' field -> Same 400 error
2. Minimal bulk request with just one item -> 400 error
3. Different categories tested -> 400 error
4. Token refresh works -> 400 error

Summary:
- I can confirm the same bulk endpoint issue (/item/bulk) returning 400 Bad Request
- The single endpoint (/item) continues to work correctly on our side too
- This confirms the issue affects multiple developers/systems
- The POST data structure appears to be correct (based on API documentation)

Additional Context:
We have implemented a fallback to single item uploads which works fine, but the bulk functionality is important for our workflow efficiency.



Thank you very much for your support!

Thanks for confirming. I can’t share example payloads right now because I’m on the go, but I can also say that sending the EXACT SAME request payload works on the endpoint for a single item, but not for bulk items.

Hi ak-lexikon,

Thanks for the data. There was indeed an issue in the code. I applied a fix, can you try a bulk request and see if the issue is resolved for you?

Fred

Yes it works. thanks you very much.