What was the main purpose of Chuck’s communication to Vicente? To Michael Sato?

What factors should he have considered when choosing a channel for his communication to Vicente? Are they the same factors he should have considered when communicating with Michael Sato?

 If you were Chuck, what would you have done differently?

What steps would you take at this point to make sure the supply of the popular new toy is sufficient to meet the anticipated demand? stage? 2022 latest answers