---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/33101#article
headline: "33101: Invalid Parameter Value\t"
url: https://www.twilio.com/docs/api/errors/33101
inLanguage: en
dateModified: 2026-03-11T20:01:16.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 33101: Invalid Parameter Value	

Log Type: APPLICATION

Log Level: ERROR

## Description

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

### Possible causes

* Your request contained invalid parameters. Please refer to the actual error response to get more details.
* While removing the Rate Plan of a SIM, your SIM must not be in status `active` or `ready`.
* While updating the Rate Plan of a SIM, you cannot move from NB-Annual to NB-developer.
* While updating the Rate Plan of a SIM, you can only move the Rate Plan to a different Data Limit Strategy while your SIM is `new` or `deactivated`.
* While updating the Rate Plan of a SIM, Narrowband SIMs cannot be paired with a non-narrowband enabled Rate Plan, or vice versa.
* While creating or updating a Rate Plan, `UniqueName` is invalid.
* While creating a Rate Plan, the limits (e.g. `DataLimit`, `NationalRoamingDataLimit`, `InternationalRoamingDataLimit`) you defined are out of range.

### Possible solutions

* While removing the Rate Plan from a SIM, ensure the SIM is neither in status `ready` nor `active`.
* While updating the Rate Plan of a SIM, ensure that the SIM is in status `new` or `deactivated` while moving the SIM to a Rate Plan with a different Data Limit Strategy.
* While updating the Rate Plan of a SIM, ensure that a Narrowband SIM has a narrowband-enabled Rate Plan, or a non-narrowband SIM has a corresponding Rate Plan.
* While creating or updating a Rate Plan, ensure `UniqueName` has a different format than a Rate Plan SID, has a maximum length of 64 characters and does not exist yet.
* While creating a Rate Plan, ensure that the limits (e.g. `DataLimit`, `NationalRoamingDataLimit`, `InternationalRoamingDataLimit`) are equal or between `0` and `2000000` (2TB).