Opening mail file in Notes 8.5.3 returns "Error accessing product object method"
Opening a mail file in Notes 8.5.3 sometimes returns "Error accessing product object method". Clicking OK closes the error message and the mail file opens. However, the error occurs again once the mail file is closed and then reopened.
Note: This error can also occur when opening the To Do or Calendar views.
This issue is known to occur if the user is assigned Editor access to their mail file.
Resolving the problem
This issue is fixed in 8.5.3 Fix Pack 1 and 9.0.
Fix details: SPR# RHAN8N9JHZ - Fixes "Error Accessing Product Object Method" message on Mailfile Open when user is limited to Editor access. This regression was introduced in 8.5.3
Workaround for 8.5.3
Temporarily grant the user Manager access to their mail file. While the user has Manager access, they will need to open their mail file and then close it. After doing that once, the error will no longer occur and the user's access to their mail file can be reverted back to Editor.