To make it easier to access data in advanced integrations, use the following connection properties to control column name identifiers and other aspects of data access:

UseDisplayNames: Set this to true to return column names that match field names in the underlying API. By default, the adapter uses column names that match the field names defined in SharePoint.

UseSimpleNames: Set this to true to perform substitutions on special characters in column names that SharePoint allows but that many databases typically do not.

ShowPredefinedColumns: Set this to false to exclude fields derived from fields in the list; for example, Author and CreatedAt. This setting excludes the predefined fields from being returned in SELECT * statements and schema discovery.

ShowHiddenColumns: When true, columns marked as hidden in SharePoint will be displayed by the adapter.

By default, the adapter attempts to negotiate SSL/TLS by checking the server's certificate against the system's trusted certificate store. To specify another certificate, see the SSL Server Cert property for the available formats to do so.

To connect through the Windows system proxy, set only the SharePoint authentication properties and the URL. To connect to other proxies, set ProxyAutoDetect to false and in addition set the following.

To authenticate to an HTTP proxy, set ProxyAuthScheme, ProxyUser, and ProxyPassword, in addition to ProxyServer and ProxyPort.

To connect to other proxies, set FirewallType, FirewallServer, and FirewallPort. To tunnel the connection, set FirewallType to TUNNEL. To authenticate to a SOCKS proxy, set FirewallType to SOCKS5. Additionally, specify FirewallUser and FirewallPassword.

To show adapter activity from query execution to HTTP calls, use Logfile and Verbosity. The examples of common connection errors below show how to use these properties to get more context. Contact the support team for help tracing the source of an error or circumventing a performance issue.

Authentication errors: Typically, recording a Logfile at Verbosity 4 is necessary to get full details on an authentication error.

Queries time out: A server that takes too long to respond will exceed the adapter's client-side timeout. Often, setting the Timeout property to a higher value will avoid a connection error. Another option is to disable the timeout by setting the property to 0. Setting Verbosity to 2 will show where the time is being spent.

The certificate presented by the server cannot be validated: This error indicates that the adapter cannot validate the server's certificate through the chain of trust. (If you are using a self-signed certificate, there is only one certificate in the chain).

To resolve this error, you must verify yourself that the certificate can be trusted and specify to the adapter that you trust the certificate. One way you can specify that you trust a certificate is to add the certificate to the trusted system store; another is to set SSLServerCert.