There are no minimum restrictions on trade size; any maximum trade size restrictions will depend on and be subject to any credit limits that you have in place with HSBC. Other than what you are or will be charged for trading over HSBC’s Evolve system, there are no additional fees or charges for using Autohedge.
Autohedge bases its calculations and hedge recommendations on the data that you provide, so if the hedge rules that you setup do not reflect your true hedging requirements, or if the exposures you provide do not reflect your true exposures, Autohedge may not recommend the trades which hedge your true hedging requirements.
Additionally, Autohedge relies on the Client Reference (which may be an invoice number, a document ID, or any other unique reference of your choosing which makes sense to you). to identify your own exposures, so if you modify or re-use an existing Client Reference inappropriately, Autohedge may misinterpret the relevant exposure as a new or changed exposure respectively, and you may not be hedged according to your true hedging requirements.
Finally, if you modify or do not book all of the hedge trades recommended by Autohedge, you may not be hedged according to your true hedging requirements.