I know I am not the first to raise this as I have already searched the forums and looked at a number of posts concerning this issue. I have eight years of data from MapMyRun (account is now closed and deleted) exported as a CSV file - it doesn't contain any mapping data so conversion to tcx or gpx is not required. I'm not exactly a rookie when it comes to IT and I know that data import is a notoriously tricky issue and I also don't entirely blame Garmin for the fact that I cannot get it to work so far.
What I have done is created some workouts in Garmin Connect (GC) and then exported these as a CSV file - this provides me with a base template to work with, because usually for a CSV import to work, the column headings, field formatting and data has to match. I have then copied all my data from the MMR file into the relevant columns in the GC export and I have defaulted all the fields I don't want to zero (or 00:00) as the case may be. I have also ensured categories of workouts have been edited to match with those available in Garmin Connect.
The only problem is the date field, as the GC field format is a custom format of DD/MM/YYYY HH:MM:SS and I know I have duplicates as I have dates for my workouts but no start times (thanks MMR - top work there). To get round this I ensured the top four values only were unique rows and used this as a test file.
However, even after all this I am still receiving the error message:
An error occurred with your upload. Please try again.
I have also tried using date only in the import field (i.e. deleting the time stamp) but this also returns the same error. I can't really think of anything else to try - as I said I don't expect this to work by magic but I had rather hoped that by using CG to create a base CSV template and manually mapping my data to that it might have stood a chance.
Has anybody else managed to crack this? All pointers gratefully received.
Regards and thanks in anticipation
Andy