Hi @Ed Toplikar38 ! Not sure I got your question correctly, please contact our team if the following is not answering your question.
Please check out the article on how to create new records from related ones here 42if you are trying to create a new contact record. If you are creating a new Contact record separately, not from the Company record, you sure need to tell the system which Company record it is related to in the linking field. So if you are talking about linking the records, please find the info here41.