Hi Feraask,
Thank you for taking interest in the AppWarp SDK.We are glad to hear from you.We will try our best to solve your queries.Please feel free to ask.
With regards to your previous question, I would like to inform you that generally a user gets a BAD_REQUEST error only in two cases :
1. If the user is not connected which according to you is not the case here.
2. If the update message size is too large (greater than 1000) which seems a possible case here.So please check the length of your message.
Do let us know if you face any other problems.
Thank you