# Ingestion sanitizer editing

The basic parameters common to all the sanitizers can be configured in the sanitizer configuration screen: from the name or description of the sanitizer to its state or the maximum number of instances allowed in each preservation plan.

![](/files/-MjjLEasB2l1IrqzbwRd)

It is also possible to configure the ingestion sanitizer parameter. If it does not exist, clicking on Add will open the form to create the new sanitizer parameter. If the parameter already exists, it can be edited or deleted. In case of editing, a form will open in order to modify the following points:

* **Description**: a brief description of the parameter, syntax, possible values, etc.
* **Type of parameter**: as explained earlier, the value of the parameter introduced in the creation of a preservation plan will be validated when associated to a preprocessor. Besides, if the type of data selected is numeric, the value of the parameter can be assigned to a range, and that range can be specified.
* **Recommended value**: we can indicate a value to facilitate the configuration of the preprocessor later on. This value will be modifiable when we apply a preprocessor in a preservation plan.
* **Default value**: in a situation where the preprocessor will always need to have a value for the parameter, but where there may be cases in which due to either the preprocessor or because the user should not be forced to introduce the value, this field can be filled out with the value to be applied by leaving the parameter value blank when configuring a preprocessor in a preservation plan.
* **Mandatory**: it is a check that indicates whether it is mandatory to put a value on the parameter of the preprocessor, or not.

![](/files/-MjjLIZGBBDJJpoJN6yw)

{% hint style="info" %}
**Note**: ingestion sanitizers can only admit the configuration of one parameter.
{% endhint %}


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