Migrate duplicated tags from term set a to term set b

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Hi guys,

due to some parallel work i have an issue in sharepoint online. I need to harmonize tags from different Term Sets.


I have 2 document libraries

- Lib X

- Lib Y


both use a dedicated term set

Lib X = Term Set A

Lib Y = Term Set B


The term sets have the same tags:

Term Set A
- Tag 1
- Tag 2

Term Set B
- Tag 1
- Tag 2


Now i want the terms in Lib Y (=Term Set B) to be mapped to the terms in Term Set A and afterwards delete Term Set B.


What is the best way to do the mapping of the Tags? UI? PowerShell? Anything else?


Thans for your help!

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