The phrase "afterwards met" is correct and usable in written English.
It can be used to indicate that someone met another person after a certain event or time period.
Example: "After the conference, we afterwards met for dinner to discuss our ideas further."
Alternatives: "subsequently met" or "later met".
349 After breakfast our friends went to their rooms, and soon afterwards met on the veranda to arrange plans for seeing Batavia.
The prince then presented long service medals to Dyfed-Powys Police staff at the force's headquarters at Llangunnor, Carmarthen, and afterwards met the recipients and their families.
"The Humane League has experienced many occasions where our street protests led to an angry response from the target company; but when I afterwards met with company representatives and was very polite, a policy change was made".
One subject who did not have a PTSD diagnosis at baseline and follow-up 1, but was severely re-assaulted afterwards, subsequently met criteria for the diagnosis at follow-up 2. No other subject reported to be re-assaulted.
Stay afterwards, meet other international students and the Tat staff, and check out the center.
I spoke to my brother on FaceTime this week and he asked "who'd have said five years ago you'd be playing for Wales, you'd win a Grand Slam and you'd be having a beer with Prince William afterwards?" Meeting Prince William was awesome.
Soon afterwards they met for dinner at Lucretia's home.
Soon afterwards I met my father at Vienna airport".
Afterwards, he met Eileen Gillooly, executive director of the Heyman Center for the Humanities and Society of Fellows.
Eventually, on her birthday, he surprised her with a telephone call, and shortly afterwards they met.
Afterwards, I met Shamshad Khan, who is wonderfully symbolic of an emergent new literary culture.
