  We have studied the transfer reaction $^{14}$N($^7$Be,$^8$B)$^{13}$C at
(\mathrm{E}_{\mathrm{lab}}=84) MeV, paying special attention to the effects of
the coupling to the continuum in the exit channel. Using the Continuum
Discretized Coupled Channels (CDCC) formalism, we find that these effects are
important for the description of the elastic scattering observables. However,
for the transfer process, differences between the predictions of the
differential cross section within the Distorted Wave Born Approximation (DWBA)
and the CDCC-Born approximation (CDCC-BA) are found to be negligible. This
result supports the use of the DWBA method as a reliable tool to extract the
$S_{17}(0)$ factor in this case.
