I have recently started work on a new Dynamics 365 online instance. I am trying to import a small (30 account records), batch of records to check that the import method works. I manually created 2 accounts then exported them. I added my additional data to the spreadsheet. I initially ran the import from the interactive hub, which did not request a .csv file. The import ran but upon examination, only copied the 2 original accounts and rejected all the new ones.
I couldn't find any logical reason for this so I switched to the traditional web client, and ran an import from the Data Management/Import option. I saved the spreadsheet as a .csv file. I ran through the import process and ensured that all the fields in the import were either matched or set to "Ignore". As before, the original files were showing as copies but the additional account data was rejected.
Does anybody have any idea why this has happened? I have carried out numerous data imports before on earlier solutions, without problem.
Some suggestions would be welcome.