# Transaction Block Group not allowing to set Trigger **URL:** \ **Category:** Ignition\ **Created:** [June 7, 2017, 9:25pm UTC](https://forum.inductiveautomation.com/t/transaction-block-group-not-allowing-to-set-trigger/14472 "2017-06-07T21:25:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Ray\_Carnahan](https://avatars.discourse-cdn.com/v4/letter/r/f05b48/32.png) [@Ray\_Carnahan](https://forum.inductiveautomation.com/u/Ray_Carnahan)\ **Post date:** [June 7, 2017, 9:25pm UTC](https://forum.inductiveautomation.com/t/transaction-block-group-not-allowing-to-set-trigger/14472/1 "2017-06-07T21:25:30Z")
Hello, Sorry, im probably missing something silly but I have a Block Group looking at a PLC and a Memory Tag for the trigger. Everything is put into the Group, but when I go to select the trigger nothing is available for me to select. ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/4/4b0676f161e6fec4a6f33f2ecfaf14021169c6c7.PNG) ---
**Author:** ![zacslade](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/zacslade/32/3587_2.png) [@zacslade](https://forum.inductiveautomation.com/u/zacslade)\ **Post date:** [June 7, 2017, 9:40pm UTC](https://forum.inductiveautomation.com/t/transaction-block-group-not-allowing-to-set-trigger/14472/2 "2017-06-07T21:40:04Z")
I think that the trigger item must be a tag which is in the transaction group, but it can’t be a block. So, you might try adding a basic OPC/Group item and then seeing if you can trigger on that. Let me know if this helps! ---
**Author:** ![Ray\_Carnahan](https://avatars.discourse-cdn.com/v4/letter/r/f05b48/32.png) [@Ray\_Carnahan](https://forum.inductiveautomation.com/u/Ray_Carnahan)\ **Post date:** [June 7, 2017, 9:41pm UTC](https://forum.inductiveautomation.com/t/transaction-block-group-not-allowing-to-set-trigger/14472/3 "2017-06-07T21:41:42Z")
Awesome that works I knew I was missing something simple. Thanks for the help.