A month after project closure the project manager received another invoice from the vendor, as if the vendor did not know the project had finished. What step did this PM fail to take during the contract closure process?

Group of answer choices

1.Send a text requesting a celebration dinner for his team paid by the vendor.

2.Read the vendor representative's body language and vocal cues during a video conference prior to closure.

3.Formally confirm with the vendor the results met expectations and the contract was complete.

4.Call the vendor infomally and imply they were pleased using vague metaphors.