AMAZON's searchDefinitionsProductTypes API call returns "Unauthorized" - "Access to requested resource is denied."

[agkyawpai]

I'm encountering an issue with the searchDefinitionsProductTypes API call, where the response returns an unauthorized access error.

Error Message:
{
"errors": [
{
"message": "Access to requested resource is denied.",
"code": "Unauthorized",
"details": ""
}
]
}

I can successfully call createFeedDocument, createFeed, getFeedDocument, getFeed , etc. but struggle calling searchDefinitionsProductTypes. I've already tested in PostMan i works completely fine but no idea why it doesn't work in app.

[jawheral]

Hi @agkyawpai,

Does your developer profile and application has the Product Listing Role assigned. The searchDefinitionsProductTypes and other listing related operations require this role.

Note: After assigning the new role, reauthorization is needed.

Best,
Jawher
Selling Partner Developer Services