Hi Eligio - yes, you may use the community license as long as you meet requirements. Please note that the IP being developed has to belong to you in order for this to apply. The IP can be used by your customers (we allow redistribution even with the community license).
However, if the IP belongs to your customer they will be the ones who will need to be licensed. Sales will also be in touch to answer any additional questions.
Please let us know if you require any additional information. Thank you for choosing to use Syncfusion products.
Best regards,
Daniel