The gap
On the Asana work management platform, a spreadsheet import creates tasks. Changing many tasks that already exist, including their custom fields, is a long-standing request.
A topic on the Asana community forum, 'Import to update existing tasks', opened on 20 July 2018, showed 281 likes on 11 November 2026.
A quote from Asana staff in that topic, 2 January 2019:
As it stands our CSV importer doesn't allow you to update or import new tasks ordered with existing ones
A quote from Asana staff in the same topic, 1 March 2026:
I’ve been building a business case for this product gap on behalf of our product group.
We do not know when, or whether, Asana will change this.
The free option
A free tool, Bulky, already updates existing tasks from an Excel or CSV file. Its own pages list fields including Task ID, Assignee, Assignee Section and Due Date, and say: 'Custom Columns are not yet supported but I'm hoping to get to them soon.' Its home page says 'Bulky is free.'; its Asana app listing shows 'Contact sales'. Check its pages for its limits and price today.
If you need custom fields changed in bulk, that is the gap this page is testing.
The offer
Planned, not built, and may never be built. No payment is taken. Pressing only counts your interest.