When you post to an insurance account, the program creates an insurance ledger entry, which you can see in the Ins. Coverage Ledger Entry table by clicking Insurance, Coverage Ledger Entries on the insurance card.
You can define automatic posting of insurance ledger entries when you post an acquisition cost of a fixed asset in the FA Setup.
Insurance ledger entries can be created by the posting of a purchase order, invoice, credit memo or journal line.
You cannot change the contents of the fields in the Ins. Coverage Ledger Entry table because the entry has been posted.