# Identifiers pane

The *Identifiers* page allows you to get a centralised overview of all the identifiers that are assigned to cards and questions. While you can go to each individual card and question and check/assign its identifier, this will be inefficient when you are dealing with a large number of identifiers. 

## User interface

The Identifiers panel seems straightforward, but nevertheless contains several options that you want to explore:

<figure><img src="/files/hmU1spoeIlaIeZDHAjTo" alt=""><figcaption></figcaption></figure>

1. This **checkbox** allows you to either show only the cards & questions that have identifiers assigned to them (= the default option), or instead show *all* the cards & questions (whether or not they have an identifier assigned to them).&#x20;
2. At the top of the pane, **light blue sub-panel** will show you an input-box with the identifier for either the **currently selected** question, or the currently selected question. This input-box is merely a handy shorthand for what you can also manage through the selected card/question's options.
3. In this input-box you can assign an identifier to the specified card.
4. When you click on this **target-icon**, you will immediately navigate to the specified card / question in some other pane.
5. In this input-box you can assign an identifier to the specified question.
6. When an identifier is used more than once in the same Q\&A, you will get a warning.&#x20;

## About duplicate identifier warnings

The warnings for duplicate identifiers are shown in the *Identifiers* pane, as well as in the identifiers input-box in the card/question's options dialog box:

<figure><img src="/files/c9PuLN52aET8fow0Op84" alt="" width="563"><figcaption></figcaption></figure>

Note that having identical identifiers is not necessarily wrong: there are advanced use cases where you want multiple questions to have the same identifier (e.g., when you know that multiple questions fulfil the same role, but are mutually exclusive in the sense that they will never show up simultaneously). In most cases, however, duplicate identifiers are likely something you don't want.&#x20;

## Checks panel

Duplicate identifiers are also shown in the *Checks* pane, but deliberately with less detail:&#x20;

<figure><img src="/files/YG6VUgfl47w56oujvlnW" alt="" width="563"><figcaption></figcaption></figure>


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