External user document library issues

[Jeyganesh]

In our SharePoint online site Document library has 10 documents. Also we have added a External user, in this external user has "Contribute" permission level. 

He can access this document library but access only 5 documents. I am not sure why this external user cannot access another 5 document. 

Where we have made the mistake?

[#2]

Hi @Jeyganesh, in the document library click the 3 dots next to each document and select Manage Access and make sure the external user is shown with Edit permissions.

Rob
Los Gallardos
Microsoft Power Automate Community Super User

[#3]

@RobElliott 

My Question is we already provided the contribute permission for the whole library.

so why we need to provide each document permission to the external user?