preconfirm
/prɪˈkɒnfərm/Definitions
1. verb
to confirm something in advance or beforehand
“The manager preconfirmed the meeting for the following week.”
2. verb
to state or declare something in advance or beforehand
“The company preconfirmed its financial results for the quarter.”
3. noun
a confirmation given in advance or beforehand
“The preconfirmation of the order allowed us to expedite the shipping process.”