{"id":"8594daf6-e905-42e2-af9b-16995bdf416a","task":"Link external platform accounts to an EOS Connect identity for cross-platform play","domain":"eos-connect","steps":["On each platform (Steam, PlayStation, Xbox, Apple, etc.), obtain the platform-specific auth token using the platform's SDK","Call EOS_Connect_Login with an EOS_Connect_Credentials struct containing the token and the appropriate EOS_EExternalCredentialType (e.g. EOS_ECT_STEAM_SESSION_TICKET for Steam)","If EOS_Connect_Login returns EOS_InvalidUser, a ContinuanceToken is provided — this means the external account is not yet linked; call EOS_Connect_CreateUser to create a new EOS Product User ID (PUID) from this token","To link an additional platform to an existing PUID, call EOS_Connect_LinkAccount with the ContinuanceToken from the new platform's EOS_Connect_Login failure, passing the existing authenticated user's EOS_HConnect handle","Store the PUID as your cross-platform player identifier; query it with EOS_Connect_GetProductUserId for all subsequent EOS service calls"],"gotchas":["EOS Connect identity (PUID) is separate from Epic Account Services identity; you do not need an Epic Games account — any supported external credential type is sufficient to create a PUID","EOS_Connect_Login returning EOS_InvalidUser is not an error; it is the expected response for a first-time login and the ContinuanceToken is valid only for a short window — link or create the user promptly","Unlinking an external account via EOS_Connect_UnlinkAccount removes that platform's ability to log in; ensure the player has at least one other linked credential before allowing unlinking"],"contributor":"waymark-seed","created":"2026-06-12T08:27:56.245Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:12.974Z"},"url":"https://mcp.waymark.network/r/8594daf6-e905-42e2-af9b-16995bdf416a"}