OpenBB-finance/OpenBB · error · EmptyDataError

The request was returned empty.

Error message

The request was returned empty.

What it means

Error "The request was returned empty." thrown in OpenBB-finance/OpenBB.

Source

Thrown at openbb_platform/providers/fmp/openbb_fmp/models/revenue_business_line.py:70

        # pylint: disable=import-outside-toplevel
        from openbb_fmp.utils.helpers import get_data_many

        api_key = credentials.get("fmp_api_key") if credentials else ""
        base_url = (
            "https://financialmodelingprep.com/stable/revenue-product-segmentation?"
        )
        url = f"{base_url}symbol={query.symbol}&period={query.period}&structure=flat&apikey={api_key}"
        return await get_data_many(url, **kwargs)

    @staticmethod
    def transform_data(
        query: FMPRevenueBusinessLineQueryParams,
        data: list[dict],
        **kwargs: Any,
    ) -> list[FMPRevenueBusinessLineData]:
        """Return the transformed data."""
        if not data:
            raise EmptyDataError("The request was returned empty.")

        results: list = []
        # We need to flatten the data.
        for item in data:
            period_ending = item.get("date")
            fiscal_year = item.get("fiscalYear")
            fiscal_period = item.get("period")
            segment = item.get("data", {})

            for business_line, revenue_value in segment.items():
                if revenue_value is not None:
                    revenue = int(revenue_value) if revenue_value is not None else None
                    if revenue is not None:
                        results.append(
                            FMPRevenueBusinessLineData.model_validate(
                                {
                                    "period_ending": period_ending,
                                    "fiscal_year": fiscal_year,

View on GitHub (pinned to 3e071fcc2c)

Solutions

1. Verify the symbol is a valid ticker with reported segment revenue on FMP.
2. Try a different fiscal period or symbol.
3. Check that your FMP plan includes revenue segmentation data.

When it happens

Trigger: Thrown at openbb_platform/providers/fmp/openbb_fmp/models/revenue_business_line.py:70 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of OpenBB-finance/OpenBB@3e071fcc2c (2026-08-14). Data as JSON: /api/errors/a482071f2accdda7. Report an issue: GitHub.