Do I have to migrate my Buttons to API v2?

Not at this time. There is no deadline for the migration, and a Button with API v1 continues to operate. But Pipedrive recommends that applications move to Pipedrive API v2. API v2 is faster and more reliable than API v1. Thus, start the migration soon.

Which Buttons to migrate

Migrate each Workflow button and each Link button that shows V1 in the Buttons list. See Manage Buttons.

• A new Button uses API v2.
• An Interface button has no API version.

Why the migration is not automatic

The field data of API v2 is partially different from API v1. Some fields have a different key, and some fields are not in API v2. You must select these fields again. A migrated Workflow button can also send a different payload to your process. Thus, migrate each Button one at a time, and test it before the users see it.

For the steps, see Migrate to API v2.