A transfer of undertaking can preserve the employee's contract and terms without preserving the immigration structure through which the person was sponsored. The commercial transfer, the statutory employment transfer and the allocation of sponsor responsibility may occur together, but they answer different legal questions.
The receiving business should therefore establish its sponsor position before completion wherever possible. If sponsored workers have already moved and the organisation lacks the relevant licence, the focus becomes the precise application deadline, the workforce record and the steps needed to prevent the problem from deepening.