Note I: The final issue's indicia shows the title as Betty & Veronica #347 (removing the "Archie's Girls" part of the title).
This is why the next Betty & Veronica series is volume 2.
Note II: The indicias of issues #313-346 indicate that the "and" in the title was changed to the "&" symbol.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/archies-girls-betty-and-veronica/4050-29250/).
