External network access limitations¶
Preview Feature — Open
Preview support for this feature is available to accounts on AWS except the Gov region. It’s also available in limited preview to accounts on Azure; contact your account representative for access.
This topic describes limitations for accessing external network locations from user-defined functions and procedures.
Limitations¶
Currently, handlers written only in Java or Python may access network locations external to Snowflake.
External network locations not on the public internet are not supported for external access. For example, locations behind a virtual private network (VPN) or virtual network (VNet) can’t be reached from a UDF or procedure.
This feature is currently available to all AWS regions except Gov.
Wildcards are not supported for VALUE_LIST values in network rules.
External access is not supported for trial accounts.
External access is not yet supported in anonymous procedures.