# Updating an existing Project Template Expense Budget

This endpoint returns structured Project Template Expense Budget objects.
As with all Kantata OX API endpoints, the returned data will be referenced in sorted order in the results array
and will be indexed by ID in the project_template_expense_budgets top-level JSON key.
Please see our Response Format section for more information.

Endpoint: PUT /project_template_expense_budgets/{id}
Version: 1.0.0

## Path parameters:

  - `id` (integer, required)
    The ID of the Model.

## Query parameters:

  - `include` (string)
    Any of the below associations can be included in your request by providing the include param, e.g. include=association1,association2.
- project_template (ProjectTemplate) - Retrieves the template the expense budget is on. The response will include project_template_id,
which references the data in the project_templates top-level key.

## Request fields (application/json):

  - `project_template_expense_budget` (object)

  - `project_template_expense_budget.title` (string)
    The name of the expense budget.

  - `project_template_expense_budget.billable` (boolean)
    Whether the expense will be billed to the client.

  - `project_template_expense_budget.burns_budget` (boolean)
    Whether the expense budget impacts the project margin.

  - `project_template_expense_budget.fixed_fee` (boolean)
    Whether the expense will be billed as a fixed cost.

  - `project_template_expense_budget.description` (string)
    The description of the expense budget.

  - `project_template_expense_budget.cost_per_unit_in_subunits` (integer)
    The cost, in the subunits of the currency (e.g. cents for USD).

  - `project_template_expense_budget.markup_type` (string)
    The markup type. Possible values are percentage and flat_fee.

  - `project_template_expense_budget.markup_per_unit_in_subunits` (integer)
    The markup per unit, in the subunits of the currency (e.g. cents for USD).

  - `project_template_expense_budget.markup_percentage` (number)
    If the markup_type is percentage, this is the markup percentage to apply to the expenses.

  - `project_template_expense_budget.quantity` (integer)
    The number of expected units for the expense budget.

  - `project_template_expense_budget.relative_expected_by_date` (integer)
    When the expenses are expected to be logged, relative to the project’s start date.
You can provide a negative value to indicate expenses are expected before the
project’s start date.

## Response 200 fields (application/json):

  - `count` (integer)

  - `meta` (object)

  - `meta.count` (integer)

  - `meta.page_count` (integer)

  - `meta.page_number` (integer)

  - `meta.page_size` (integer)

  - `results` (array)

  - `results.key` (string)

  - `results.id` (string)

  - `project_template_expense_budgets` (object)

  - `project_templates` (object)

## Response 400 fields (application/json):

  - `errors` (array)

  - `errors.type` (string)

  - `errors.message` (string)