# Data Exchange between External Python and Ignition Tag Provider **URL:** \ **Category:** General Discussion\ **Tags:** ignition81\ **Created:** [April 30, 2025, 5:43pm UTC](https://forum.inductiveautomation.com/t/data-exchange-between-external-python-and-ignition-tag-provider/105744 "2025-04-30T17:43:28Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![David\_Brown](https://avatars.discourse-cdn.com/v4/letter/d/bb73d2/32.png) [@David\_Brown](https://forum.inductiveautomation.com/u/David_Brown)\ **Post date:** [April 30, 2025, 5:43pm UTC](https://forum.inductiveautomation.com/t/data-exchange-between-external-python-and-ignition-tag-provider/105744/1 "2025-04-30T17:43:28Z")
I am new to Ignition and I am working on a project that requires read and write between Ignition OPC UA server which has tag providers. I got the communication to work between ignition and python. However, when I try to access the tag provider tags I have no luck. Has anyone done this before. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [April 30, 2025, 5:59pm UTC](https://forum.inductiveautomation.com/t/data-exchange-between-external-python-and-ignition-tag-provider/105744/2 "2025-04-30T17:59:40Z")
Did you enable the "Exposed Tags" setting for the Ignition OPC UA server and then restart? > **[Ignition's OPC UA Server | Ignition User Manual](https://docs.inductiveautomation.com/docs/8.1/ignition-modules/opc-ua/ignitions-opc-ua-server#advanced)** > > Ignition's OPC UA server, provided by the OPC UA module, allows an ignition installation to utilize Ignition's various device driver modules. In addition, with the module installed, OPC UA clients can connect to Ignition's UA server, exposing any...