Gmail to Outlook 2016 migration imported contacts don't autocomplete when typing, how can I fix this?

A customer of mine was getting notices when he opened outlook 2016 that his mailbox, and internet calendars were corrupted. We would go through and scan it would say it fixed it but then when we re-opened outlook, same issue.

I have deleted the profile
I have setup a new outlook profile for the gmail account.
I have setup internet calendars again (private) and also have imported the contacts from gmail into outlook.

Is there a way that we can capture the autocomplete listing the customer had with his old profile? Isn't there a file that contains this listing? I can just move it to where the current one is and name it that name so outlook thinks that its the present one?
Patrick DomanCTO / PresidentAsked:
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Patrick DomanCTO / PresidentAuthor Commented:
I think I found my own answer on this. Outlook creates a new file called the "Stream_Autocomplete......." file. This file is in the c:\users\<username>\appdata\local\microsoft\outlook\RoamCache folder.
The file has a long name associated with it. Outlook generates this file as you type more and more email addresses in.

I had to move the current file into a backup folder.
Copy the name of the file and overwrite my original name cache file which was much larger in size than the new one that outlook created when I setup a new profile.

Once I copied the file and overwrote the new one's name with the original one from prior to deleting the old maibox profile, everything began working. I type in "a" or "b" or "c" and all of the correct email addresses came up.
This worked for me. Not sure if I delete my question because I figured it out?
Blue Street TechLast KnightCommented:
Hi Patrick,

This is the official Microsoft supported method for Outlook 2016 to export the AutoComplete list:
  1.    Exit Outlook, and then close Outlook Web Access or Outlook Web App (OWA) on all workstations that are connected to your mailbox.
  2.    Download and install MFCMAPI from
  3.    Run mfcmapi.exe.
  4.    On the Session menu, click Logon.
  5.    If you are prompted for a profile, select the desired profile name, and then click OK.
  6.    In the top pane, locate the line that corresponds to your mailbox, and then double-click it.
  7.    In the left-side navigation pane, expand Root Container, and then expand Top of Information Store or IPM_SUBTREE.
  8.    Right-click the Inbox folder, and then click Open Associated Content Table. This action opens a new MFCMAPI window that contains various properties.
  9.    Under the Subject column, right-click the item that has the subject IPM.Configuration.Autocomplete, and then click Export Message. This action opens the Save Message To File window.
  10.    In the drop-down list, select MSG file (UNICODE), and then click OK.
  11.    Select a folder location to which you want to save the message, and then click Save. Note this location.


Let me know if you have any other questions!

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Patrick DomanCTO / PresidentAuthor Commented:
Either way works to resolve this. Thank you Blue Street Tech for the MS Article.
Blue Street TechLast KnightCommented:
Glad I could help...thanks for the points!
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