Product "published_at" sets itself to null by update

Hi,

I’m trying to update a product via “/admin/api/2023-01/products/{id}.json” endpoint. When I retrieve the product with the same endpoint I can see that “published_at” field is not empty since product is visible on the website.

I simply retrieve the product, set some fields other than “published_at” and send an update. But after I send the update the “published_at” field sets itself to null even though it is not null in my PUT request.

Any help is appreciated,

Thanks