Salesforce

 Maintain Your Platform Developer Certification for Winter ‘26 Handle Large External Service Callouts and Payloads Without Hitting Apex Heap Limits Working with large amounts of data in Apex can quickly push you up against heap size limits, especially when you need to transfer files or binary payloads to or from external systems. This release introduces a more efficient process for managing large callouts through External Services. Instead of loading binary data directly into the Apex heap, External Services now uses pointers to  ContentDocument  object IDs. This means you can upload or download binary files up to 16 MB without blowing through heap limits, significantly improving reliability for data-heavy integrations. For example, a developer integrating Salesforce with a digital asset management system can now transfer large images or PDFs without running into Apex governor limits. And because this process uses  ContentDocument  as the storage mechanism, the ...

 Maintain Your Platform App Builder Certification for Winter ‘26 Trigger a Flow When a File Is Attached Managing files just got a lot smarter. You can now automatically launch a flow whenever a file is attached to a record—no Apex code or complex workarounds required. This enhancement lets you set filters so that your flow triggers only when it matters. You can filter by: File type or extension  (for example, trigger only when a PDF is attached) File name  (for example, when the file name contains “Contract”) Created by  (for example, only for files uploaded by a specific user group) When your conditions are met, the File Attach event automatically kicks off the flow. This opens up powerful new automation use cases, like: Starting a contract approval process when a signed document is uploaded. Sending notifications when a compliance file is attached. Automatically tagging or categorizing records based on file type. To set it up, start by creating an Automation Event–...