Can I use my number to work with the Chat API?
Yes it is possible.
You can easily use your work number to work with the Chat API. At the same time, if you do not want to take risks, then you can start working with a new SIM card. but before that, it is worth spending about a week with a new number in the usual format of use, that is, calling and writing messages.
The fact is that new numbers for WhatsApp have a lower "trust rating" and are more likely to be banned in case of suspicious activity.
You can always test the service through the Chat API itself, using the "Testing" tool. In other words, you can fully debug the work before you start interacting with real customers.