See table below for an overview of the built-in exchange/symbol name mapping that PV applies to every signal received from TV.
The defaults will already be set to target the correct market on the exchange based on the source chart in TV in most cases.

This is done before any other processing so that you usually will never have to explicitly specify (via ex=/sym= or similar) which exchange or market you want to trade on!

Source (TV) Destination (PV)
BINANCE:*PERP BINANCEFT:*
BINANCE:*.P BINANCEFT:*
BINANCE:*1234 BINANCEFT:*
BITMEX:*PERP BITMEX:*
BITMEX:*.P BITMEX:*
BITFINEX:*UST.P BITFINEX:*F0USTF0
BITFINEX:*USDT.P BITFINEX:*F0USDTF0
BYBIT:*PERP BYBIT:*
BYBIT:*.P BYBIT:*
BYBIT:*1234 BYBIT:*34
BYBIT:* BYBIT:*S
DERIBIT:*USD.P DERIBIT:*-PERPETUAL
DERIBIT:*USD?.P DERIBIT:*_USD?-PERPETUAL
DERIBIT:*USDT DERIBIT:*_USDT
DERIBIT:*BTC DERIBIT:*_BTC
KRAKEN:BTCUSD KRAKEN:XBTUSD
KRAKEN:BTCUSDT KRAKEN:XBTUSDT
KRAKEN:BTCUSD.PM KRAKENFT:PF_XBTUSD
KRAKEN:BTCUSDPERP KRAKENFT:PI_XBTUSD
KRAKEN:BTCUSD.P KRAKENFT:PI_XBTUSD
KRAKEN:*.PM KRAKENFT:PF_*
KRAKEN:*PERP KRAKENFT:PI_*
KRAKEN:*.P KRAKENFT:PI_*
KRAKEN:BTCUSD1234 KRAKENFT:XBTUSD1234
KRAKEN:BTCUSDT1234 KRAKENFT:XBTUSDT1234
KRAKEN:*1234 KRAKENFT:*1234
OKX:*.P OKX:*PERP
PHEMEX:BTCUSD.P PHEMEX:UBTCUSD
PHEMEX:ETHUSD.PI PHEMEX:CETHUSD
PHEMEX:*PERP PHEMEX:*
PHEMEX:*.P PHEMEX:*
PHEMEX:*.PI PHEMEX:*
PHEMEX:* PHEMEX:S*