Okex uses 4h mark candle timeframe

freqtrade/exchange/exchange.py

@@ -1841,6 +1841,8 @@ class Exchange:
         if self.funding_fee_cutoff(open_date):
             open_date += timedelta(hours=1)
         timeframe = self._ft_has['mark_ohlcv_timeframe']
+        timeframe_ff = self._ft_has.get('funding_fee_timeframe',
+                                        self._ft_has['mark_ohlcv_timeframe'])
         open_date = timeframe_to_prev_date(timeframe, open_date)
 
         fees: float = 0
@@ -1852,7 +1854,7 @@ class Exchange:
         mark_comb: PairWithTimeframe = (
             pair, timeframe, CandleType.from_string(self._ft_has["mark_ohlcv_price"]))
 
-        funding_comb: PairWithTimeframe = (pair, timeframe, CandleType.FUNDING_RATE)
+        funding_comb: PairWithTimeframe = (pair, timeframe_ff, CandleType.FUNDING_RATE)
         candle_histories = self.refresh_latest_ohlcv(
             [mark_comb, funding_comb],
             since_ms=open_timestamp,

freqtrade/exchange/okex.py

@@ -16,6 +16,8 @@ class Okex(Exchange):
 
     _ft_has: Dict = {
         "ohlcv_candle_limit": 100,
+        "mark_ohlcv_timeframe": "4h",
+        "funding_fee_timeframe": "8h",
     }
 
     _supported_trading_mode_collateral_pairs: List[Tuple[TradingMode, Collateral]] = [