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PUT
/
discounts
/
update
/
{discount_id}
Update Discount Code
curl --request PUT \
  --url https://api.swoogo.com/api/v1/discounts/update/{discount_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "code": "SPRINGSALE2024",
  "type": "percentage",
  "percentage_discount": 15,
  "absolute_discount": 25.5,
  "apply_to_all": true,
  "capacity": 10,
  "min_group_size": 5,
  "registrants_per_use": 2,
  "all_registrants_in_group": true,
  "applicable_line_items": [
    "session",
    "package"
  ],
  "custom_fees_update": {
    "session": {
      "4147126": "315"
    }
  },
  "autopopulate_attributes": [
    {
      "attribute": "gender",
      "value": "<unknown>"
    }
  ],
  "notes": "Discount for early bird registrants.",
  "sold_out_message": "SPRINGSALE2024 has been used too many times."
}
'
{
  "id": 6095869,
  "parent_id": null,
  "event_id": 261977,
  "code": "SPRINGSALE2024",
  "type": "percentage",
  "capacity": 10,
  "min_group_size": 0,
  "registrants_per_use": 0,
  "sold_out_message": null,
  "percentage_discount": 15,
  "absolute_discount": 0,
  "applicable_line_items": [
    "session",
    "package"
  ],
  "apply_to_all": 1,
  "custom_fees": {
    "session": {
      "4147126": "315",
      "4147127": "337.5"
    }
  },
  "notes": "Discount for early bird registrants.",
  "created_at": "2026-04-28 21:00:15",
  "updated_at": "2026-04-28 21:00:15"
}

Authorizations

​
Authorization
string
header
required

OAuth 2.0 bearer token obtained from POST /oauth2/token. Tokens expire after 30 minutes. Include in the Authorization header as Bearer {access_token}.

Path Parameters

​
discount_id
integer
required

integer - required - The ID of the Discount Code you want to update

Example:

1

Body

All fields are optional on update. event_id cannot be changed — discounts are bound to their original event. To create alternate codes for an existing discount, use the clone endpoint.

​
code
string

Unique code for the discount within the event. May not contain <, >, \, or ".

Maximum string length: 255
Example:

"SPRINGSALE2024"

​
type
enum<string>

The type of discount being applied.

Available options:
percentage,
absolute,
specific
Example:

"percentage"

​
percentage_discount
number<float>
Required range: 0 <= x <= 100
Example:

15

​
absolute_discount
number<float>
Example:

25.5

​
apply_to_all
boolean
Example:

true

​
capacity
integer
Example:

10

​
min_group_size
integer
Required range: x >= 2
Example:

5

​
registrants_per_use
integer
Required range: x >= 2
Example:

2

​
all_registrants_in_group
boolean
Example:

true

​
applicable_line_items
string[]
Example:
["session", "package"]
​
custom_fees_update
object

New entries to merge into the stored custom_fees. See discountCreateRequest for shape.

Example:
{ "session": { "4147126": "315" } }
​
autopopulate_attributes
object[]
​
notes
string
Example:

"Discount for early bird registrants."

​
sold_out_message
string
Maximum string length: 255
Example:

"SPRINGSALE2024 has been used too many times."

Response

Updated

The discount payload returned by every read endpoint. Reflects Discount::fields() exactly — every property is always present in the response (values may be null).

​
id
integer
Example:

6095869

​
parent_id
integer | null

ID of the primary discount when this row is an alternate code; null (or 0) for primary codes.

Example:

null

​
event_id
integer
Example:

261977

​
code
string
Example:

"SPRINGSALE2024"

​
type
enum<string>
Available options:
percentage,
absolute,
specific
Example:

"percentage"

​
capacity
integer

Maximum number of times this discount can be used. 0 means unlimited.

Example:

10

​
min_group_size
integer
Example:

0

​
registrants_per_use
integer
Example:

0

​
sold_out_message
string | null
Example:

null

​
percentage_discount
number<float>
Example:

15

​
absolute_discount
number<float>
Example:

0

​
applicable_line_items
string[] | null
Example:
["session", "package"]
​
apply_to_all
enum<integer>

Returned as 0 or 1 (not a JSON boolean), even though the request accepts a boolean.

Available options:
0,
1
Example:

1

​
custom_fees
object

Merged set of line-item-specific fees for specific discounts. Outer key is the line-item type (reg_type, package, session), inner key is the line-item ID (numeric string), value is the fee as a string. Populated by custom_fees_update on write.

Example:
{
  "session": { "4147126": "315", "4147127": "337.5" }
}
​
notes
string | null
Example:

"Discount for early bird registrants."

​
created_at
string

Timestamp when the discount was created. Formatted as YYYY-MM-DD HH:MM:SS.

Example:

"2026-04-28 21:00:15"

​
updated_at
string

Timestamp when the discount was last updated. Formatted as YYYY-MM-DD HH:MM:SS.

Example:

"2026-04-28 21:00:15"