How to solve Mckesson CSV file upload issue on an ecommerce platform?

Topic summary

Problem: Uploading a McKesson product CSV to Shopify fails with an error that the file exceeds the maximum number of columns. McKesson’s rep claims their CSV should be compatible with Shopify.

Context: The exact file isn’t shared, making diagnosis difficult. CSV refers to comma-separated values used for data import.

Suggested approach: Compare the McKesson CSV against Shopify’s sample product CSV to spot differences, with emphasis on column count and any deviations from Shopify’s expected structure.

Outcome/Status: No resolution yet. Action item is to perform a side-by-side comparison with Shopify’s sample CSV to identify mismatches. The thread awaits further details or results from this comparison.

Summarized with AI on January 10. AI used: gpt-5.

We are now a distributor for Mckesson products. How do we upload their CSV file on Shopify? Shopify is saying that the file exceeds the max amount of columns. Our Mckesson rep states that the CSV file should be compatible with Shopify.

Really hard to comment on this without seeing the file but one step you could take would be to compare the sample csv Shopify provides against what you’ve got. It might give an early clue as to what’s different/wrong especially if the column count in the sample one is different.