Import Access to Office Sharepoint 365 - Field lookup failed

Hi,

I have an Access database on my local drive and would like to import to Office 365 Sharepoint online.

First, I have created an Access App on Office 365.

Then I import my Desktop database using Access database.

The problems are:

• The imported tables lost primary keys that I set to one of my columns.
• The lookup rows are set to a standard "short text" which do not have the lookup function in desktop database.

Do you know any tutorials or any tips that allow to import the relationship from desktop to online database ?

Many thanks.