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PandaXPandaX 

Formular Field including auto number

I want to create a Field with the following output format:

X-TTTT-NNNN

X will be just the X character.

TTTT should be the value I take from another Field of the same object (until now thats super easy)
NNNN should be a number that is unique for the TTTT value (for example this TTTT could be a Store or Location)
The number as awhole schould be unique in the entire system, without any reppetitions.

How would I implement the NNNN part?

HARSHIL U PARIKHHARSHIL U PARIKH

I would say store all of these information in three different fields.

1) First X is a field named Field__1__c
2) Second one looks like you got it already and store it inside the Field__2__c
3) Now, for the Field__3__c I would say create a Auto Number field with for the four digits.

Once, done create a formula field named Final_Field__c = Field__1__c + "-" + Field__2__c + "-" + Field__3__c

Hope this helps!

PandaXPandaX

That in fact does not solve my problem. But I was not really clear about it:

The NNNN part of the number should start at 1 for every TTTT Example:

BR01-0001
BR01-0002
BR01-0003
BR02-0001
BR01-0004

the TTTT part could be taken from a field like you suggested. But how can I reference that for the NNNN part, so it will start again for a new TTTT identifier?