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Is there a job number generator software that links with Trello?

Hi all, I use Trello for my project management, I'm currently creating job numbers with excel, approx 100 a week. This seems very inefficient and I was wondering if there is a job number generator software that links or is compatible with Trello. Any suggestions would be much appreciated!

3 answers

Hello @boyandbirdcollective 

Every card in a Trello board has a unique number, starting at 1 for the first one created, then incrementing thereafter. By default, that number isn't shown anywhere, and there are a few browser-side add-ins like Trello Card Numbers that make it visible, but a much easier way is to create a custom field and store the card's number in it.

  1. Create a new custom number field called 'ID' (or whatever you want to call it)
  2. Create a new Butler rule
  3. Add a Trigger of the type Card Move, with the condition 'when a card is added to the board'
  4. Add an Action of the type Field, with the condition 'set custom field "ID" to "{cardnumber}"'
  5. Save the rule

The full rule will be:

when a card is added to the board, set custom field "ID" to "{cardnumber}"

The variable {cardnumber} will be substituted with the number of the card when the rule runs.

Voila! A unique, incrementing number field for every card.

If you want the field to have some extra identifying information, make it a custom text field, so you can set it to something fancy like "ABC-{cardnumber}" or "{boardname}-{cardnumber}" etc. Read the Trello variables page to see all the variables available for use in Butler rules.

milynnus Rising Star May 12, 2021

@David Bakkers 

Thanks for sharing. I did not know that the card number is unique to the board. Definitely useful to have in a developer’s toolkit. 

Like TechBloom likes this



The internal ID of the card (for example, FY2OWrnc). This value is always constant.



The internal number of the card on the board (for example, 48). This value changes when the card is moved to another board (not always available).


Hi @boyandbirdcollective 


We also use Card Numbers by perfectly! :)

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