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Question

The eikon data API is repeatedly failing this morning. Routine instrument requests through ek.get_timeseries or ek.get_data are returning a constant stream of 2026-06-02 08:29:45,729 P[93244] [MainThread 26328] UDF Core request failed. Gateway Time-out

2026-06-02 08:29:45,730 P[93244] [MainThread 26328] HTTP request failed: EikonError-UDF Core request failed. Gateway Time-out

This issue is isolated to the TimeSeries_UDF_endpoint. There is absolutely no issue with the get_data endpoint requested through eikon.get_data

File ~\AppData\Local\anaconda3\Lib\site-packages\eikon	ime_series.py:182 in get_timeseries

ts_result = eikon.json_requests.send_json_request(TimeSeries_UDF_endpoint, payload, debug=debug)

File ~\AppData\Local\anaconda3\Lib\site-packages\eikon\json_requests.py:134 in send_json_request

raise EikonError(eikon_err.code, eikon_err.message)

EikonError: Error code 2504 | UDF Core request failed. Gateway Time-out

Jirapongse · Answer

@TS_Joey

To the best of my knowledge, get_timeseries cannot access historical data for TR.xxx fields; it only supports historical data for real-time fields.

The ek.get_data method is equivalent to ld.get_data, while ek.get_timeseries corresponds to ld.get_history.

Please refer to the examples on GitHub.

TS_Joey · Answer

can you provide answer about the clients query below? Thank you.
Just to be clear.  The get_timeseries endpoint has been resolved and is working as expect now, but please don’t simply close the ticket.  Please confirm that the new LSEG library has a timeseries endpoint and provide me with the equivalent documentation on access the TR.  Fields that I require, particuarlly accessing volatility data of the form C10Pc1 (For Corn (10 delta Put Position 1, JUL in this case) on a historical basis.  Not the CF_CLOSE data point but a TR.CLOSE data point which I can access via get_timeseries but is not accessible in the data item browser or get_data endpoint.

unknown · Answer

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