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Co-sell error stating CRM Sync Failed

  • Published on Nov 17, 2025
  • 1 minute(s) read
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Problem : "Co-sell error stating CRM Sync Failed"

Issue:
["source=SalesForce, message=CRM sync failed, CoSell request to CRM failed, status : Forbidden, response : [{\"message\":\"This session could not be mutually authenticated for use with the REST API\",\"errorCode\":\"MUTUAL_AUTHENTICATION_FAILED\"}]"]

Root Cause:
If you encounter the above Co-sell sync error, it may be due to the password issue of the connected Salesforce user. Please refer to the two solutions below to resolve the issue.

Resolution 1: Update Password Policy

Follow the steps below to set the password policy for the connected user to Never Expire:

  1. Click on the Gear icon and select Setup.

  2. Search for Password Policies in the Quick Find box.

  3. Set User passwords expire in to Never Expires.

  4. Save the changes.

Resolution 2: Reset Password

Reset the password for the connected Salesforce user, and then revalidate the SaaSify ↔ Salesforce connection.