This is mapping.
What is mapping?
It was asked/answered many times on the forum (I answered about it 320 times/posts) so I prepared some summary posts about
so I can provide the links to the posts/threads only without discussion to be started on your thread.
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mapping -
- explanation with examples/screenshots - post #7
- full explanation (short thread with several posts and with screenshots etc): https://www.mql5.com/en/forum/442553
- explanation in details (incl lot size): https://www.mql5.com/en/forum/447444
- How to select the broker/signal and with mapping: post #28

- 2018.11.27
- www.mql5.com
Broker's use a variety of naming patterns: EURUSD, EURUSDb, EURUSDc, EURUSDcheck, EURUSDct, EURUSDecn, EURUSDf, EURUSDh, EURUSDi, EURUSDm, EURUSDme, EURUSDmicro, EURUSDpro, EURUSDt, EURUSDx. “EUR.USD”, “EUR/USD”, “EUR/USD_ecn”, “EURUSD!”, “EURUSD#”, “EURUSD..”, “EURUSD.”, “EURUSD.a”, “EURUSD.ax/a>”, “EURUSD.c”, “EURUSD.cfx”, “EURUSD.ecn” and “EURUSD.ECN”, “EURUSD.G”, “EURUSD.i”, “BTCUSD.lts”, “EURUSD.m”, “EURUSD.p”, “EURUSD.pro”, “EURUSD.r”, “EURUSD.t/a>”, “EURUSD.SBe”, “EURUSD.stp”, “EURUSD.z”, “EURUSD'”, “EURUSD@”, “EURUSD_i”, “EURGBP_0s”, “EURUSD-5”, “EURUSD-g”, “EURUSD-m”, “EURUSD-sb”, “#XAUUSD”, “#FB”, “#TSLA”, and Financial symbols with “-”, “=”, “_”, and “+”
If the pattern your broker uses doesn't match the pattern of your signal provider's broker, you can't copy the signal/open a trade. Switch brokers to one that has that adornment.
If the naming pattern of your charts isn't exactly “BasQuo” then hard coded symbols fails. Don't hard code things; just use the predefined _Symbol, or add/remove the adornments during processing.
I need to know how to fill an enum or get a drop down list, with a string array :)) - MQL4 programming forum #10 (2020)

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