Show measurement data, according to condition

[Aguirre]

Hello, I have created a measure to know the days that have passed from a date until today, so far so good.
My problem is that I want to put a conditional on it and I can't, I'll give you my measurement:

Day =

var startDate=MIN(F_contract[F.Send])

var endDate=TODAY()

return DATEDIFF(startDate,endDate,DAY)+0

and now I want, if the field F_contract[F.signed] of the same table is = Null, that it show me the days of the measure and if not, put "ok"

I've tried different ways but it won't let me.
I've tried different ways but it won't let me.
The fields F_contract[F.Send] and F_Contract[F.signed] belong to the same table

any ideas?

[SpartaBI]

@Aguirre just to make sure, you tries this and it didn't work:

Day =

var startDate=MIN(F_contract[F.Send])
var endDate=TODAY()
var _result = DATEDIFF(startDate,endDate,DAY)+0
RETURN
    IF(ISBLANK(SELECTEDVALUE(F_Contract[F.signed])),_result, "ok")

[Aguirre]

well, excuse me.
I need it to show me only the days, when the value is fulfilled is F_Contract[F.signed]= Null and "_result" >8 days.

Something like that:
YES::
F_Contract[F.signed] && _result >8
Show the day else show OK

[SpartaBI · Accepted solution]

@Aguirre in case this solves your question, please mark this as solution. Appreciate your Kudos:

Day =

var startDate=MIN(F_contract[F.Send])
var endDate=TODAY()
var _result = DATEDIFF(startDate,endDate,DAY)+0
RETURN
    IF(
        ISBLANK(SELECTEDVALUE(F_Contract[F.signed])) && _result > 8,
        _result,
        "ok"
    )

[Aguirre]

Perfect, it's what I needed, thank you very much.

[Aguirre]

The solution is perfect, but I am missing a detail, I want the result of the _result to be > 8 days and the Null condition is also met.
I have tried but it does not give me correct, can you help me

[SpartaBI]

Not sure I understand. Can you write in simple words what are the conditions that you want to be for what result. All the options