# Tag Replace - (OPC to UDT's) **URL:** \ **Category:** Ignition\ **Created:** [December 6, 2019, 4:11pm UTC](https://forum.inductiveautomation.com/t/tag-replace-opc-to-udts/30496 "2019-12-06T16:11:09Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![kaushik.shah](https://avatars.discourse-cdn.com/v4/letter/k/34f0e0/32.png) [@kaushik.shah](https://forum.inductiveautomation.com/u/kaushik.shah)\ **Post date:** [December 6, 2019, 4:11pm UTC](https://forum.inductiveautomation.com/t/tag-replace-opc-to-udts/30496/1 "2019-12-06T16:11:09Z")
Hello, We have some OPC tags between the PLC’s and Ignition !! since, we have to create the same tags for another project, we realized making a mistake and not creating the UDT’s !! Now, we have created the UDT’s for all the tags and looking to replace that wherever the tags are used !! Since, we are using that at everywhere (global scripting, component scripting, bindings) what is the best solution to replace them over !! Thanks ---
**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\ **Post date:** [December 6, 2019, 6:12pm UTC](https://forum.inductiveautomation.com/t/tag-replace-opc-to-udts/30496/2 "2019-12-06T18:12:26Z")
Through the use of the Find / Replace Tool. You would still have to open each project that uses it, but this is your best option. [https://docs.inductiveautomation.com/display/DOC80/Find+and+Replace](https://docs.inductiveautomation.com/display/DOC80/Find+and+Replace) ---
**Author:** ![kaushik.shah](https://avatars.discourse-cdn.com/v4/letter/k/34f0e0/32.png) [@kaushik.shah](https://forum.inductiveautomation.com/u/kaushik.shah)\ **Post date:** [December 6, 2019, 6:20pm UTC](https://forum.inductiveautomation.com/t/tag-replace-opc-to-udts/30496/3 "2019-12-06T18:20:53Z")
Yes !! But I was looking for more programming way of doing it since we got at least 500 tags to replace !!