A friend who is a UK citizen is planning to visit me in the US in November, when the Covid travel restrictions will get changed. Due to a miscommunication, she mistakenly began the process of applying for a visa instead of a visa waiver, and I'm fairly certain the visa application process will not be completed in time for the planned November visit.
I can't confirm the precise details at the moment, as she is asleep, but I think she has used https://ceac.state.gov/genniv/ to fill out form DS-160, electronically submitted it, and probably paid the fee. She only did this within the last day, and has not yet scheduled an interview.
If she now also applies for a visa waiver, will the concurrent applications potentially cause any problem for either application?
I have looked through various sections of the US visa and visa waiver government websites, and also tried a few google searches, and could not find anything clearly applicable to this situation.