Update Custom Audience Users

Adds or removes users in a Reddit Ads custom audience using emails or mobile advertising IDs (hashed automatically); one identifier kind per call

Adds or removes users in a Reddit Ads custom audience using emails or mobile advertising IDs (hashed automatically); one identifier kind per call. Find audience IDs with reddit_ads_list_custom_audiences.

App	Reddit Ads
Operation ID	reddit_ads_update_custom_audience_users
Type	Action
Connection	reddit_ads (required)
Credits per run	1
Agent / MCP tool	Yes
Requires approval	Yes (write operation)

Inputs

Field	Type	Required	Default	Description
account	DynamicAccount	Yes	-	Select the Reddit Ads account that owns the audience.
audience_id	string or SelectItem	Yes	-	ID of the custom audience to update. Find audience IDs with reddit_ads_list_custom_audiences.
action	string or SelectableOption	Yes	-	Whether to add or remove the users. Options: ‘ADD’, ‘REMOVE’.
emails	string or array of string	No	-	Email addresses as a list or comma/newline separated text. Plain emails are normalized (whitespace removed, lowercased) and SHA-256 hashed automatically; already-hashed 64-hex values pass through. Use emails or mobile_device_ids, not both.
mobile_device_ids	string or array of string	No	-	Mobile advertising IDs (IDFA / AAID) as a list or comma/newline separated text; hashed automatically. Use emails or mobile_device_ids, not both.

SelectItem

Field	Type	Required	Default	Description
value	string	Yes	-	The value of the selectable item.
label	string	Yes	-	The label of the selectable item, used for display purposes. If not provided, defaults to the value.

SelectableOption

Field	Type	Required	Default	Description
value	string	Yes	-
label	string	Yes	-

Output

Type: Dict

Returns the action and user counts.

Fields: audience_id, action, identifier_type, user_count