I’m trying to subtract a buffer input time in mins/hr from date/time field.

I’ve tried various expressions with and without custom states but can’t seem to get it right. Can anyone help? Thanks in advance.

use the operator in a dynamic expression after a date such as +mins or +hours and if it is for subtracting when entering the value use the - in front of the number

There is no minus sign there, you should write -x.

I want to subtract it from a buffer input field that I have. Is that possible?

`+(minutes): Buffer Input Value * -1`

I cannot write that in either.

You should SELECT the multiplyer operator (*) as a Bubbles dynamic operator THAN write -1.

it’s a number

Yes, what you are doing wrong is not writing the - sign in front of the number as directed

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