I had applied for UK Tier 2 ICT short term visa in March 2015 and got it approved. However due to logistical reasons, I could not travel before the until date and am planning move next month. In my Certificate of Sponsorship (CoS), the job start date is specified as April. It is July now. So does it have any impact in immigration upon arriving in UK? Also is it mandatory for the CoS to be valid (not expired) when entering the UK because the visa is approved?
In order to enter the UK on the Tier 2 Intra-Company Transfer, the Certificate of Sponsorship (CoS) must be valid; it cannot be expired. Additionally, you say ‘before the until date’ which implies that you’re referring to the validity period of the visa itself (from one date, until another date). If that is the case, and the Tier 2 visa validity period has passed, you and your company would have to repeat the visa process.