Error Message

[Anonymous]

Hi there,

I'm trying to do something I've done many times before without running into issues. 

today though, I get the following error message when trying to add a column in power query environment:

the formula I'm using to get here is:

Like said, I've used this in the past (or at least I think I have) and never ran into error messages. 

suggestions welcome to overcome this. thanks

[v-cherch-msft]

Hi @Anonymous 

It seems you may check the M language in query editor.You may post your issue here for further help.Here is the post which was caused by calendar function not working with new version for your reference.

Regards,