Feed Mapping: Columns, Renames, and Transforms

Feed mapping lets you control exactly what columns appear in your custom feed, what they're called, and how values are transformed.

Adding a column

In the Feed Editor, the column picker on the left shows all available source columns. Click a column to add it to your mapping, or click + Add Row to add an empty mapping row manually.

Source types

For each mapping row, you choose a source:

• Column - maps from a source column. You can rename the output column to anything.
• Fixed value - always outputs the same static text value (e.g. new for condition, in stock for availability)
• Mixer column - maps from a data source joined via Feed Mixer (if active on this project)

Renaming columns

The Output column name is what appears in the downloaded feed. Set it to whatever the target platform expects. For example, map product_title → title for Google Shopping, or img_src → image_link.

Transforms

Transforms modify values before output. Apply one or more transforms per row - they run in order.

Available transforms:

• lowercase / UPPERCASE / Title Case - change text case
• strip - remove leading and trailing whitespace
• number - strip all non-numeric characters (useful for price columns with currency symbols)
• prepend / append - add fixed text before or after the value (e.g. prepend https: to relative URLs)
• replace - find and replace text within the value
• truncate(N) - cut value to N characters maximum

Reordering

Drag the handle at the left of each row to reorder columns. The CSV output preserves your row order.