# Select Object Types in Advanced Search

If you do not know the specific object type of the record(s) you are looking for, select the **All Object Types** option.

{% hint style="warning" %}
IMPORTANT: make sure that the object types you want to search are activated in the Sources menu, Accessed via the button, 'Choose a Data Set'. Otherwise, they will not be searchable in 'Advanced Search.'
{% endhint %}

Selecting All Object Types allows you to search all of the Object Types you have selected in the Sources menu:

If you already know the [CensusID](https://docs.census.de/the-census-database-overview/censusids) of the object you are looking for, you can enter it in the corresponding search field.

If you want to search for only one Object Type, you can select it in the drop-down menu.