Vesting and immediate sale of shares

A client vests some shares in an unapproved share scheme. Some of the shares are immediately sold by the broker to satisfy the PAYE liability.

The income and PAYE goes through payroll so there is no need to enter onto the Additional Page (box 1, page Ai 2), but does the immediate sale need to go onto a CGT schedule (no gain/no loss)? I suppose it does, assuming above reportable limits, but would appreciate confirmation, please.