# OPC Transfer Subscription

**URL:** <https://forum.inductiveautomation.com/t/opc-transfer-subscription/91600>\
**Category:** Ignition\
**Tags:** scripting, ignition81\
**Created:** [June 10, 2024, 5:54am UTC](https://forum.inductiveautomation.com/t/opc-transfer-subscription/91600 "2024-06-10T05:54:25Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Abhay\_Srivastava](https://avatars.discourse-cdn.com/v4/letter/a/48db29/32.png) [@Abhay\_Srivastava](https://forum.inductiveautomation.com/u/Abhay_Srivastava)\
**Post date:** [June 10, 2024, 5:54am UTC](https://forum.inductiveautomation.com/t/opc-transfer-subscription/91600/1 "2024-06-10T05:54:25Z")

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I am using my PLC, which supports the OPCUA Transfer Subscription service, along with Ignition Client as the OPCUA client. I want to trigger a Transfer Subscription request from one session to another session. Can anyone provide guidance on how to achieve this?

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**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:** [June 10, 2024, 12:38pm UTC](https://forum.inductiveautomation.com/t/opc-transfer-subscription/91600/2 "2024-06-10T12:38:53Z")

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You cannot. Subscriptions are transferred if the connection is lost and a new session is subsequently established. Otherwise there is no way or need to transfer subscriptions.

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<div class="post-metadata">

**Author:** ![Abhay\_Srivastava](https://avatars.discourse-cdn.com/v4/letter/a/48db29/32.png) [@Abhay\_Srivastava](https://forum.inductiveautomation.com/u/Abhay_Srivastava)\
**Post date:** [June 11, 2024, 4:23am UTC](https://forum.inductiveautomation.com/t/opc-transfer-subscription/91600/3 "2024-06-11T04:23:20Z")

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Does that mean the server automatically transfers the subscription to the new session?

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<div class="post-metadata">

**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:** [June 11, 2024, 1:36pm UTC](https://forum.inductiveautomation.com/t/opc-transfer-subscription/91600/4 "2024-06-11T13:36:09Z")

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The Client initiates the transfer after reconnecting, not the Server.

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<div class="post-metadata">

**Author:** ![Abhay\_Srivastava](https://avatars.discourse-cdn.com/v4/letter/a/48db29/32.png) [@Abhay\_Srivastava](https://forum.inductiveautomation.com/u/Abhay_Srivastava)\
**Post date:** [June 12, 2024, 3:18am UTC](https://forum.inductiveautomation.com/t/opc-transfer-subscription/91600/5 "2024-06-12T03:18:29Z")

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So if I am using induction client then how to send transfer request ?

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<div class="post-metadata">

**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:** [June 12, 2024, 3:29am UTC](https://forum.inductiveautomation.com/t/opc-transfer-subscription/91600/6 "2024-06-12T03:29:23Z")

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You don’t, it happens automatically when the client reconnects after a connection loss. You can’t trigger it on your own.