Inability to open images and Pop-up windows – MDM iViews

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Symptom
There are 3 possible symptoms to this issue:
1. MDM Portal iViews image fields are not displaying image. Instead of the linked image, a red “X” is displayed. In addition, Portal DefaultTrace file will contain the following entry:
Access denied (Object:com.sap.portal.system/security/com.sap.pct.mdm.appl.masteriviews/low_safety).
2. When trying to open any Pop-up window in the MDM Item Details iView you get a “Portal Running environment error”. In the Portal DefaultTrace file you see the following entry:
com.sapportals.portal.prt.runtime.PortalRuntimeException: Access is
denied: com.sap.pct.mdm.appl.masteriviews.QualifierRowPopupViewer -
user:
com.sapportals.portal.prt.deployment.DeploymentManager.checkPermissions
Caused by: com.sapportals.portal.pcd.gl.PermissionControlException:
Access denied (Object(s): com.sap.portal.system/security/com.sap.pct.mdm.appl.masteriviews/low_safety).
3. When attempting to open a Pop-up, the Popup window opens up with a generic exception error message: “Portal runtime error. An exception occurred while processing your request……Refer to the log file for details about this exception”. The Default Trace log has no additional information”.
Other terms
MDM, [...]