Can you tell us what sellercentral api’s you are trying to call with your EU client ids?
- Sponsored Ads API (Pulling reports related to seller central sponsored Ads)
Can you also tell us your EU ClientId (just the clientId will be sufficient) for us to investigate more?
CliendID - amzn1.application-oa2-client.6ff7b9955d0a4e63ad15aa88f3726162
Please also tell us what product you are trying to integrate with for “I am told that the same account(email) can be used for both regions.” so that we can connect to you with the right group for help.
I am trying to connect to my clients data (1 client is in EU and another client is in NA(US) )