Market order for FTSE options

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Market order for FTSE options

Hi All,
Is it possible to make a market order for the daily FTSE options?

I have tried using the API companion to open a position by buying a call option. Sometimes I get a 200 response and a deal reference but if I try to confirm the trade it returns a rejected response.

I'd be grateful if someone could give me a working example of the content body I should be posting.