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.

[Daydreamer Mike]

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}