CSM Partner Case Visibility and Partner Field PopulationIssue Partner contacts are unable to view cases created by customer accounts in the CSM portal. Symptoms Partner users cannot locate or open customer cases in the CSM portal.Access Analyzer shows that access to the case is restricted.The partner and partner_contact fields are blank on the affected cases. Facts Updating rules and scripts to their latest out-of-box versions did not resolve the behavior.Setting the partner_contact field enabled the partner user to view the case.The out-of-box record producer populates partner_contact and partner only when the associated account has the partner flag enabled.No out-of-box mechanism was found that populates the Partner field from Account Relationship records.Cases created through alternative case creation methods may not populate the partner-related fields. Release Not release specific. Cause The partner and partner_contact fields were not populated on the affected cases. The out-of-box partner population logic only runs when its required conditions are met, including the submitting user's account having the partner flag set to true. Account Relationship records are not used by the out-of-box logic to determine the partner assignment. Resolution Populate the partner_contact field to provide an individual partner contact with visibility to the case.Populate the partner field when the partner organization requires visibility to the case.Ensure the applicable partner account has the partner flag set to true when using the out-of-box case creation logic.If partner assignment must be determined from Account Relationship records, implement custom logic based on the required business process.