Can’t Assign Roles on WordPress Multisite (Except Customer) – Solved

Hi All, please check the solution below:

File Path : \wp-content\plugins\woocommerce\includes\wc-user-functions.php
Function Name: wc_modify_editable_roles

============================================================

Code Before Changes:

function wc_modify_editable_roles( $roles ) {
	if ( ! current_user_can( 'administrator' ) ) {
		unset( $roles['administrator'] );
	}

	if ( current_user_can( 'shop_manager' ) ) {
		$shop_manager_editable_roles = apply_filters( 'woocommerce_shop_manager_editable_roles', array( 'customer' ) );
		return array_intersect_key( $roles, array_flip( $shop_manager_editable_roles ) );
	}

	return $roles;
}
add_filter( 'editable_roles', 'wc_modify_editable_roles' );

===============================================================

Code After Changes:

function wc_modify_editable_roles( $roles ) {
	if ( ! current_user_can( 'administrator' ) ) {
		unset( $roles['administrator'] );
        
        if ( current_user_can( 'shop_manager' ) ) {
    		$shop_manager_editable_roles = apply_filters( 'woocommerce_shop_manager_editable_roles', array( 'customer' ) );
    		return array_intersect_key( $roles, array_flip( $shop_manager_editable_roles ) );
    	}
	}
    	

	return $roles;
}
add_filter( 'editable_roles', 'wc_modify_editable_roles' );