Task
This case prepares the Inventory tracker column from stock_tracking for the final CSV.
Short answer
Write shopify only for rows where inventory is tracked; leave the Shopify CSV cell blank otherwise.
How to do it in Eofferix
Select the source column or create the output column from the specified source.
stock_tracking→Inventory tracker.Open the settings of the output column
Inventory tracker.
Real animation: opening the output column settings in the table editor. In Transformations, add the rules shown below.

Real screenshot of the Transformations block for this column. Save the settings, go to export, and check the values in the downloaded CSV.
Check target column names and accepted values against the official CSV documentation. Shopify CSV.
Before / after
Before
source data| Handle | SKU | stock_tracking |
|---|---|---|
| lamp | LAMP-1 | yes |
| poster | POST-1 | no |
| mug | MUG-1 | 1 |
After
result| Handle | SKU | Inventory tracker |
|---|---|---|
| lamp | LAMP-1 | shopify |
| poster | POST-1 | |
| mug | MUG-1 | shopify |