Using Userinfo.getSessionId in LWC Throws Invalid Session Id

apex, Debugging, Integration, REST Api

PROBLEM After Summer ’17, Salesforce disabled it while using in Lightning Domain to enforce the security measures. Here is Salesforce known issue: https://issues.salesforce.com/issue/a028c00000qQ1F3AAK/summer17–generating-a-session-id-from-lightning-domain-provides-invalid-session-id Solution – Named Credential Use Named Credential to get the session id. Steps: Once you’ve logged in there, the refresh token is saved and used by the named credential. From there, you …

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INVALID_ID_FIELD, WhatId is not available for sending emails to UserIds

apex, Architect, Salesforce

Introduction This error is thrown while sending email using apex if you are setting User Id in target recipient: setTargetObjectId(usr.Id) and also specifying target record id as: setWhatId(opp.Id). As per Salesforce documentation if you are passing record id in WhatId then you can only pass Contact Id in setTargetObjectId. Here is Salesforce article: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_classes_email_outbound_single.htm Workaround