No need — use Integration Builder in OutSystems 11 for native OAuth 2.0 Salesforce connections (no Forge component needed).

Follow this steps:

1. In Salesforce: Setup → Apps → App Manager → New Connected App → Enable OAuth → Set Callback URL (shown in OutSystems Integration Builder) → Scopes: api, refresh_token, etc. Note Client ID/Secret.
2. In OutSystems: Service Studio → Integration Builder → Create Salesforce connection → Follow wizard (auto-creates Connected App if admin perms) or paste Client ID/Secret + URLs.
   • Auth URLs: https://login.salesforce.com/services/oauth2/authorize & /token (use test.salesforce.com for sandbox).

Official guide: https://success.outsystems.com/documentation/11/integration_with_external_systems/create_connectors_with_integration_builder/use_integration_builder/salesforce_integration

For older setups or manual REST: Consume Salesforce REST APIs with OAuth 2.0 (client credentials or auth code flow) — see https://success.outsystems.com/documentation/11/integration_with_external_systems/rest/consume_rest_apis/use_oauth_2_0_client_flow_authorization_in_consumed_rest_api_web_services