Hi @JeanneVU
I feel your pain, I have a lot of issues trying to import data into CDS!
I have a workaround that should solve all your problems.
First, build out the entity with the appropriate fields to map your excel columns (it sounds like you've done this already)
Next, convert your excel file to CSV by going to Save As and selecting CSV from the dropdown list.
Here's the trick. We are going to use the data import wizard, and I'll bet it won't give you the same errors.
From the maker portal, click the gear icon, then Admin Center. Click Environments, then select your environment and click Settings. Expand Data Management and click Imports:
From Imports click Import Data from the top ribbon. The wizard will open, which is pretty easy to use. Add your CSV file, pick the entity to map to and follow the steps.
Let me know if this import method works for you, or if you hit any snags. You shouldn't get the errors this way.
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