Query to polybase external table giving error “Access to the remote server is denied because no login-mapping exists.”

we have successfully created all pre-requisite of creating external tables using SQL Server 2017 Standard Edition CU22 Polybase.

The issue we have is the non-sysadmin login can’t query those external tables .It shows below error.

Msg 7416, Level 16, State 2, Line 29 Access to the remote server is denied because no login-mapping exists.

The sysadmin login can query external tables without any issue. Is there anybody saw this issue and can help to resolve it.