# Update source for Memory tag

**URL:** <https://forum.inductiveautomation.com/t/update-source-for-memory-tag/63479>\
**Category:** Ignition\
**Created:** [August 25, 2022, 10:18pm UTC](https://forum.inductiveautomation.com/t/update-source-for-memory-tag/63479 "2022-08-25T22:18:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![indra.biswas](https://avatars.discourse-cdn.com/v4/letter/i/3bc359/32.png) [@indra.biswas](https://forum.inductiveautomation.com/u/indra.biswas)\
**Post date:** [August 25, 2022, 10:18pm UTC](https://forum.inductiveautomation.com/t/update-source-for-memory-tag/63479/1 "2022-08-25T22:18:22Z")

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Does anyone know whats the best way to find out what is updating a memory tag(something like cross referencing from Ctrlogix PLC) ? It seems like it can be updated from almost anywhere-somewhere from a gateway script to a tag event script.  
Sometimes I need to troubleshoot a brand new ignition project, and its really hard to know what is updating a specific memory tag. Its usually something in the gateway script in most of my cases, but thats just a lucky guess.

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**Author:** ![Paul\_Verbovshchuk](https://avatars.discourse-cdn.com/v4/letter/p/f0a364/32.png) [@Paul\_Verbovshchuk](https://forum.inductiveautomation.com/u/Paul_Verbovshchuk)\
**Post date:** [August 26, 2022, 3:50pm UTC](https://forum.inductiveautomation.com/t/update-source-for-memory-tag/63479/2 "2022-08-26T15:50:34Z")

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You can use find/replace to search for where that memory tag is used.

[https://docs.inductiveautomation.com/display/DOC80/Find+and+Replace](https://docs.inductiveautomation.com/display/DOC80/Find+and+Replace)

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**Author:** ![indra.biswas](https://avatars.discourse-cdn.com/v4/letter/i/3bc359/32.png) [@indra.biswas](https://forum.inductiveautomation.com/u/indra.biswas)\
**Post date:** [August 26, 2022, 11:20pm UTC](https://forum.inductiveautomation.com/t/update-source-for-memory-tag/63479/3 "2022-08-26T23:20:36Z")

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Yes, I am aware of the Search feature, but that maybe a hit or miss. Might not work for indirect tag addressing

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**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:** [August 29, 2022, 10:28am UTC](https://forum.inductiveautomation.com/t/update-source-for-memory-tag/63479/4 "2022-08-29T10:28:16Z")

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You can try searching for a partial path. Oft times a base path is hard coded.