# Update Licenses External Id

Update Licenses External Id. 
Only users with Library Manager permission can update the External Id of a license. 
The licenseId should be a valid license id and the externalId should not exceed 255 characters.

Endpoint: PATCH /licenses/{licenseId}
Version: v1
Security: bearerAuth

## Path parameters:

  - `licenseId` (integer, required)
    ID of the license
    Example: 1

## Request fields (application/json):

  - `externalId` (string)
    externalId
    Example: "External License Id Eg:156"


## Response 200 fields

## Response 400 fields

## Response 404 fields

## Response 500 fields