1. In the Tab: Availability of the respective variant, the availability "OTTO Market" must be set.
2. In the Tab: Properties of the respective variant, the property "OTTO category group" must be set. The selection value expected is the format name of the respective OTTO catalogue. This linking assigns the variant to the respective OTTO catalogue (this corresponds to the OTTO category group).
   The name of the catalogue you assigned is NOT expected, but the name of the format!
3. The variant is activated.
4. The variant has a positive net stock in the linked warehouse of the catalogue.

Furthermore, the variants require at least one link to all mandatory fields of the respective catalogue. Mandatory fields are marked with an asterisk (*) in the catalogue.

Your data will only be transmitted to Otto once it passes the PlentyONE validation. The following values must be correctly set for this:
"- „ean“"
"- „sku“ / „productReference“"
"- „stock“" (inventory)
"- „productDescription.category“"
"- „productDescription.brand“"
"- „productDescription.brandId“"
"- „mediaAssets.IMAGE“ or „mediaAssets“"
"- „pricing.standardPrice.amount“ or „pricing.standardPrice.currency“"
"- „pricing.vat“"

If the requirements are met and the variant is also displayed in the live download of the catalogue, there may still be another error.

The errors can be checked under Data >> Log.

There are two article data validations:

1. The PlentyOne validation, filterable in the log under the integration "Plenty\Modules\Otto\Item\Services\ItemExportService". If the articles (variant IDs) are found here, they have not yet been transmitted to OTTO; the errors must be corrected.

2. The OTTO market validation, filterable in the log under the integration "Plenty\Modules\Otto\Item\Commands\ItemReportResultCommand".
Here there are successful, discarded due to no changes and rejected reports from Otto. The SKU can be found within the message.

Using the log filter "Level", rejected SKUs including the SKU-specific OTTO error message can be found under "ERROR" and accepted and discarded SKUs due to no changes under "INFO".