Grant-PnPAzureADAppSitePermission command is not working

[DharmendraYadav1990]

I am getting below error when executing below command. Pnp is registered in Azure AD with full control.

Grant-PnPAzureADAppSitePermission -AppId "4*******---*****" -DisplayName "xxxxxxx" -Permissions Read -Site https://xyx.sharepoint.com/sites/abc
Grant-PnPAzureADAppSitePermission: {"error":{"code":"accessDenied","message":"Access denied","innerError":{"date":"2025-05-14T08:09:29","request-id":"f76acd40-6562-41ef-bee6-930958f01045","client-request-id":"f76acd40-6562-41ef-bee6-930958f01045"}}}