Retrieve a fixed fee

Operation ID: getFixedFee

Group: PSA › Fixed Fees

Open in the interactive reference

GET /psa/fixed-fees/{id}

Read-only: Reads and returns; changes nothing.

Retrieves a fixed fee. Each fixed fee has both amount and currency, or neither, because together they make one money value.

Parameters

Name In Type Required Description
Api-Version header string · v1 yes The API version this request targets, named by its public identifier. Required on every request; omitting it, or naming a version this company does not have, is answered with 400. This document describes version v1.
id path string yes The unique identifier of the fixed fee you want to retrieve. Example: "7c2e1b90-4a53-4f16-8de2-9b1035c7ef42".

Response

200 Success

Under data (getFixedFeeOutput):

Field Type Required Description
id string yes The unique identifier for the fixed fee. Example: "7c2e1b90-4a53-4f16-8de2-9b1035c7ef42".
amount decimal no The fixed fee amount, in the currency given by currency. Example: "5000.00".
currency string no The currency of amount. Format ISO 4217, for example 'USD'. Example: "USD".
frequency string no The billing frequency of the fixed fee. Possible values: 'Monthly', 'BiMonthly', 'Quarterly', 'SemiAnnually', 'Annually', 'Once'. Example: "Monthly".
startDate date no The first day of the fixed fee's billing period, inclusive. Format YYYY-MM-DD. Example: "2026-01-01".
endDate date no The last day of the fixed fee's billing period, inclusive. Format YYYY-MM-DD. Example: "2026-12-01".
psaProjectId number yes The id of the PSA project this fixed fee belongs to. It is a numeric key, not the UUID that GET psa/projects/:id takes. Example: 32341.
salesOrderProductLineId number no The id of the sales order product line this fixed fee fulfills. It is a numeric key. There is no endpoint for it.
productId number no The id of the product this fixed fee is associated with. It is a numeric key, not the UUID that GET accounting/products/:id takes.
productLineId number no The id of the product line this fixed fee is associated with. It is a numeric key, not the UUID that GET accounting/product-lines/:id takes.
lastModifiedDate date-time yes The date and time the fixed fee record last changed, in UTC. Format YYYY-MM-DDTHH:mm:ss.sssZ. Example: "2026-08-14T11:20:31.004Z". 
{
  "data": {
    "id": "7c2e1b90-4a53-4f16-8de2-9b1035c7ef42",
    "amount": "5000.00",
    "currency": "USD",
    "frequency": "Monthly",
    "startDate": "2026-01-01",
    "endDate": "2026-12-01",
    "psaProjectId": 32341,
    "salesOrderProductLineId": 0,
    "productId": 0,
    "productLineId": 0,
    "lastModifiedDate": "2026-08-14T11:20:31.004Z"
  },
  "diagnostics": [
    {
      "code": "<code>",
      "message": "<message>",
      "severity": "error",
      "path": [
        "<path>"
      ],
      "details": "<details>"
    }
  ]
}

Errors

Code Status
NOT_FOUND 400

Statuses