  We present the results of a joint {\it XMM-Newton} and {\it NuSTAR} campaign
on the active galactic nucleus (AGN) IC 4329A, consisting of 9 $\times$ 20 ks
{\it XMM-Newton} observations, and 5 $\times$ 20 ks {\it NuSTAR} observations
within nine days, performed in August 2021. Within each observation, the AGN is
not very variable, with the fractional variability never exceeding 5%. Flux
variations are observed between the different observations, on timescales of
days, with a 30% ratio between the minimum and the maximum 2-10 keV flux. These
variations follow the softer-when-brighter behavior typically observed in AGN.
In all observations, a soft excess is clearly present. Consistently with
previous observations, the X-ray spectra of the source exhibit a cut-off energy
between 140 and 250 keV, constant within the error in the different
observations. We detected a prominent component of the $6.4$\,keV Fe~K$\alpha$
line consistent with being constant during the monitoring, consisting of an
unresolved narrow core and a broader component likely originating in the inner
accredion disc. We find that the reflection component is weak ($R_{\rm
max}=0.009\pm0.002$) and most likely originating in distant neutral medium. We
also found the presence of a warm absorber component together with an
ultra-fast outflow. Looking at their energetic, these outflows have enough
mechanical power to exercise a significant feedback impact on the AGN
surrounding environment.
