Can Trello automatically create a unique ID number for each of my clients?

[Mauricio Arevalo]

I need to identify each of my clients, in lists or cards, with a unique and unrepeatable number that is automatically generated.

[Tymek Zapała]

@Mauricio Arevalo 

DId you check out Card Numbers power-up? It will work given that you will create a card for each of your clients.

[Mike - Dreamsuite Consulting]

This is the simplest way, it is worth mentioning that the card numbers powerup exposes the card number created by Trello for each card.

You can access that in automation using the variable {cardnumber}

To make it more unique, you can use {cardid}

A sample automation would be:

When a card is created on board "Board 1", rename the card to {cardnumber}: {cardname} 

[Jennie]

Hi @Mauricio Arevalo , you can do this by creating a custom field.

Go to the board menu, select Custom Fields.

Select New Field

Title: Card Number [or your choice of title]

Type: Number

(keep the Show field on front of card checkbox checked)

Click Create

Then make an automation. I created mine as a Card button, as I didn't want the number on every card.

Create button

Set custom field Card Number

to

{cardnumber} 

You could do it as a rule if you want it for every card (just follow the suggestion made by @Mike - Dreamsuite Consulting but tweak it to set the custom field instead of rename the card).