The absence of the "X-Hubspot-Signature" header in CRM extension requests can indicate potential issues with the request authentication or configuration. The "X-Hubspot-Signature" header is commonly used for verifying the authenticity and integrity of requests sent to the HubSpot API. Here are a few possible reasons why the header might be missing:
Firstly, misconfigured webhooks could be the culprit. If you're expecting this header in webhook requests, ensure that the webhook is properly configured to include it. Double-check the webhook settings in your CRM extension or wherever it's being set up.
Secondly, authentication errors should be ruled out. Make sure that the requests are properly authenticated before they reach HubSpot.