The $p_{\rm T}$-differential inclusive J/$\psi$ production cross section in \mbox{p--Pb} and \mbox{Pb--p} collisions at $\sqrt{s_{\rm NN}}=8.16$ TeV. The vertical error bars (not visible because smaller than the symbols) represent the statistical uncertainties, the boxes around the points the systematic uncertainties. The horizontal bars correspond to the bin size. The values of the reference pp cross sections, obtained through the interpolation/extrapolation procedure described in Sec. 3, scaled by $A_{\rm Pb}$, are shown as bands.