(1) The CMA must -

(a) in the case of an initial SMS investigation which it does not close under section 12, decide whether to designate the undertaking to which the investigation relates as having SMS in respect of a digital activity to which the investigation relates;

(b) in the case of a further SMS investigation, make a decision on the matters mentioned in section 10(3) and, where relevant, section 10(4).

(2) The CMA must give the undertaking a notice (an "SMS decision notice") setting out its decisions under subsection (1) on or before the last day of the period (the "SMS investigation period") of 9 months beginning with the day on which the SMS investigation notice is given.

(3) The giving of a revised version of an SMS investigation notice under section 11(4) does not change the day on which the SMS investigation period begins.