latestOpenAPI 3.1.02026-08-233001841.3 MB

0dcf3303e9d7

activities1

activities.calls5

activities.creations2

activities.custom_activities5

activities.email_threads3

activities.emails5

activities.form_submissions3

activities.import_updates3

activities.lead_merges2

activities.lead_status_changes4

activities.meetings5

activities.notes5

activities.opportunity_status_changes4

activities.sms5

activities.task_completions3

activities.whatsapp_messages5

blocked_phone_numbers7

bulk_actions.delete3

bulk_actions.edit3

bulk_actions.email3

bulk_actions.sequence_subscriptions3

comments7

connected_accounts2

contacts5

custom_activity_types5

custom_field_schemas2

custom_fields.activity5

custom_fields.contact5

custom_fields.custom_object5

custom_fields.lead5

custom_fields.opportunity5

custom_fields.shared9

custom_object_types5

custom_objects5

dialers2

email_templates6

events2

exports8

field_enrichment1

files1

forms2

groups7

integration_links5

lead_statuses5

leads6

memberships6

opportunities5

opportunity_statuses5

organizations2

outcomes5

phone_numbers5

pipelines5

playbooks7

reporting8

roles5

scheduling_links14

send_as6

sequences10

smart_views5

sms_templates5

tasks6

unsubscribed_emails3

users4

webhooks5

custom_fields.activity

Create a new Activity Custom Field

Activity Custom Fields belong to Custom Activities, and have additional attributes:

custom_activity_type_id – the ID of the Custom Activity Type this Field should belong to.
required – whether the Field will be required to publish the activity.

post/custom_field/activity/

Response

Successful response