It’s tougher or in fact quite impossible to transfer to consulting now, you should have applied for consulting right at the start when you first join. If you can’t get into consulting role when you applied then higher unlikely you will find it any easier to transfer to consulting while on the job. Suggestion to you is to just do your job or if you really is interested in consulting, you can jump to another firm for a consulting role (but you need to prove you’re able to do consulting work and how you can link your work experience to it in the interview). If you’re just wanting to jump into consulting cos you’re sick of implementation work, you’ll soon be sick of consulting work too.