Error with platformToken endpoint

[Damnbuoy]

Issue Checklist

• [X] I have properly named the issue
• [X] I looked in issues/discussions, if my question was previously anwsered

What is the Request Method?

POST

What is the Request URL?

https://account-public-service-prod.ol.epicgames.com/account/api/public/account/{self.account_id}/platformToken/xbl_xtoken/cfaa14c4bf8744e3a5ef9a5d6c34558d

What are your Request Headers (if applicable)?

No response

What are your Request Payload/Body (if applicable)?

No response

What is the Response Status Code?

401

What are the Response Headers (if applicable)?

No response

What is the Response Content? (if applicable)

{"errorCode":"errors.com.epicgames.account.external_auth_validate_failed","errorMessage":"secondaryAccountIds should contain at least one item (a XUID) for xbl methods.","messageVars":[],"numericErrorCode":18063,"originatingService":"com.epicgames.account.public","intent":"prod"}

Additional Context (if applicable)

Im using "rp://epicgames.com/" relying party to get the exchange code. Whats the cause of this error? I dont know what secondaryaccountIds its talking about :c

[Jaren8r]

The xbl_xtoken external auth type has never been fully figured out. Previously this gave a database timeout error, but now it gives this error. I'm suspecting that there's another relying party actually used that hasn't been found yet. I'll update the documentation on this.

[Damnbuoy]

I need to redeem xbox purchases. Is there any other workaround for that?

[Jaren8r]

1. RedeemRealMoneyPurchases takes the XSTS token directly for MicrosoftStore, there is no platform token involved here (platform tokens are only for psn and ubisoft afaik).
2. I don't believe it's possible to generate an XSTS token that will work there. I'm assuming it needs the XSTS to contain a title token for Fortnite, but that's not possible to get without having device authorization of a real console (since the xbox version of fn is only supported on consoles).

[Damnbuoy]

thanks alot.