# 21240: Credential List Validation Error

Log Type: APPLICATION

Log Level: ERROR

## Description

One of the parameters passed when creating or updating a Credential List was incorrect.

### Possible causes

* A Credential List with the same FriendlyName may already exist
* A Username was not provided. A Username must be provided and it must have 32 characters or less
* The password was not provided. A password is required that meets the following criteria:

  * Minimum 12 characters
  * At least one mixed case
  * At least one digit

### Possible solutions

* Ensure that your Credential List meets the validation requirements.