Is there anyways we can import the Order/Invoice/Credit Memos/ Transaction/ Comment History to M2 from M2.
In your case, to add extra data to the existing tables, write script to copy the records from one table to another.
Method 1:
- Connect with the database
- Get the data from CSV file (Export/Download the data in CSV format)
- Insert the data into new table
Method 2:
Place table1(data that you are going to transfer) and table2(destination table) to same database
- Connect with the database
- Write script to copy the records from table1 to table2