I am trying to integrate the Adobe web SDK via the AEM; however, alloy calls are encountered, indicating that the currently configured Datastream ID does not exist. How do I enable the data stream ID for my AEM?
Adobe Platform Web SDK sends data from your website to Platform Edge Network. Datastream then tells Platform Edge Network to which service (example AEP, Adobe Analytics, Adobe Target) data to be sent
You need to configure data stream in Adobe Data Collection and configure it your Web SDK extension in Data Collection. More details are mentioned in below links -