  An exact solution for the scattering wavefunction from a nonlocal potential
in the presence of Coulomb interaction is presented. The approach is based on
the construction of a Coulomb Green's function in coordinate space whose
associated kernel involves any nonlocal optical potential superposed to the
Coulomb-screened interaction. The scattering wavefunction, exact solution of
the integro-differential Schr\"odinger's equation, poses no restrictions on the
type of nonlocality of the interaction nor on the beam energy.
