Product Search API endpoint

I’m trying to use this endpoint:

but I’m always getting

code: 400, 
status: 'error', 
message: 'There was a problem with the request.'

This is my code:

const PublicObjectSearchRequest = {
 properties: ["name"],
 filterGroups: [
 {
 "filters":[
 {
 "propertyName":"sku",
 "value": "SSCRV",
 "operator":"EQ"
 }
 ]
 }
 ]
 };

 const productResults = await hubspotClient.crm.products.searchApi.doSearch(PublicObjectSearchRequest);

Would anyone please point me where I’m getting it wrong?

Ok, just in case someone is having the same problem, the correct name of the property is “hs_sku”, that’s why we were getting an error.