BUG::expression builder misplacing '@' symbol

[Element115]

STEPS

0__define a variable

1__drop a Teams activity onto the design surface

2__connect it to your account

3__go to its Settings

4__click in the Subject line 

5__press ALT-SHIFT-D to bring up the expression builder

6__click in the editor field that opens up

7__type: concat()

8__below the editor field, click on the Variables tab

9__click on the variable you just defined

10__the '@' symbol is not where it should be; screenshots below.

[Anonymous · Accepted solution]

Hi @Element115 
Thanks for using Fabric Community.
This is not a bug. This is an expected behaviour. When you use the concat keyword to concatenate two strings in the dynamic expression builder, the '@' symbol will appear at the start.
You can refer to the below links for more information:
https://joeho.xyz/blog-posts/how-to-do-string-interpolation-in-azure-data-factory/
https://learn.microsoft.com/en-us/fabric/data-factory/expression-language

Hope this helps. Please let me know if you have any further queries.