# 33101

## Description <a href="#not-found" id="not-found"></a>

Raised when an invalid parameter is provided. Refer to the [API documentation](https://docs.korewireless.com/en-us/api/products/programmable-wireless) for more details.

## Possible Causes <a href="#not-found-1" id="not-found-1"></a>

The following conditions may cause errors:

* Your request contains invalid parameters. Refer to the actual error response for more details.
* When removing a SIM’s Rate Plan, the SIM must not be in the active or ready status.
* When updating a SIM’s Rate Plan, you cannot move from NB-Annual to NB-Developer.
* When updating a SIM’s Rate Plan, you can change the Data Limit Strategy only if the SIM status is new or deactivated.
* Narrowband SIMs cannot be paired with non-narrowband–enabled Rate Plans, and vice versa.
* When creating or updating a Rate Plan, the UniqueName value is invalid.
* When creating a Rate Plan, the defined limits (for example, DataLimit, NationalRoamingDataLimit, and InternationalRoamingDataLimit) are out of range.

## Possible Solutions <a href="#not-found-2" id="not-found-2"></a>

* Review your request parameters and ensure they are valid. Refer to the detailed error response for specific information.
* Before removing a SIM’s Rate Plan, verify that the SIM status is not active or ready.
* When updating a SIM’s Rate Plan, do not attempt to move from NB-Annual to NB-Developer.
* Only change the Rate Plan’s Data Limit Strategy when the SIM status is new or deactivated.
* Ensure that Narrowband SIMs are paired only with Narrowband-enabled Rate Plans, and non-Narrowband SIMs with compatible Rate Plans.
* When creating or updating a Rate Plan, verify that the UniqueName value is valid.
* When creating a Rate Plan, confirm that all defined limits (for example, DataLimit, NationalRoamingDataLimit, and InternationalRoamingDataLimit) are within the allowed range.