This policy issue message means you have attempted to submit one or more company card expenses that are not part of your card statement import.
Imported company card expenses show the credit card icon to make it easy to tell at a glance which draft expenses have been imported to your My Expenses account.
As the 'company card expenses must be associated with a statement' policy rule is turned on, only company card expenses with the credit card icon next to them can be submitted for approval.
You can use the Merge feature to merge incomplete imported company card expenses with manually created company card expenses.
Please review our Merge unmatched draft company card expenses or Merge unmatched draft company card expenses - (mobile app) help articles for steps on how to do this.