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Why am I getting an Invalid ID error message when using data loader
I exported a report from SFDC that captured account ID’s because I needed to do a big upsert. I added all the information into the spreadsheet and when I upload it into the data loader I get an invalid account ID error message. I double checked the ID’s and they bring up the correct account when I copy and paste it into the URL.
Is it definitely the account id - do you have a mapping to any other id fields (Lookup or Master Detail fields)?