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Update Membership Plan - Plugixa Car Wash

PUT /plugixa-carwash/v1/membership-plans/{id}

Change some or all of a membership plan’s fields. PATCH does the same as PUT.

Needs Plugixa Car Wash Pro with the Memberships app on, and the plugixa_carwash_edit capability.

Only what you send changes. A field you leave out keeps its value, so you can send a single field. A field you send is checked exactly as on create.

Note. On update currency is stored as sent, not upper-cased.

Request

PUT https://your-site.example/wp-json/plugixa-carwash/v1/membership-plans/2

Path parameters

Name Type Description
id integer The membership plan’s id

Request body

Content type: application/json

Field Type Required Description
name string No At most 190 characters.
description string No At most 2000 characters.
price number No 0 to 100000.
currency string No Three letters, upper-cased on create.
period string No month or year.
washes integer No Per period, 0 to 1000. 0 is unlimited.
package_ids array No Package ids a membership wash covers. Empty covers every package.
addon_discount number No Percent off extras, 0 to 100.
color string No A hex colour, or empty.
sort_order integer No -1000 to 1000.
status string No published or unpublished.
modified_at string No The modified_at you last read. When the membership plan has changed since, the update is refused with 409. 
{
  "price": 42,
  "modified_at": "2026-11-12 09:30:00"
}

Responses

200 OK. data is the updated membership plan.

{
  "success": true,
  "data": {
    "id": 2,
    "name": "Unlimited Monthly",
    "description": "Wash as often as you like.",
    "price": 39.0,
    "currency": "USD",
    "period": "month",
    "washes": 0,
    "package_ids": [
      4
    ],
    "addon_discount": 10.0,
    "color": "#6366F1",
    "sort_order": 0,
    "status": "published",
    "created_by": 1,
    "modified_by": 1,
    "created_at": "2026-11-10 08:15:00",
    "modified_at": "2026-11-12 09:30:00",
    "deleted_at": null,
    "members": 58
  }
}
Field Type Meaning
data.id integer The plan’s id
data.price number Charged every period
data.currency string Three letters
data.period string month or year
data.washes integer Washes included per period. 0 means unlimited
data.package_ids array Packages it covers. Empty means every package
data.addon_discount number Percent off extras for members
data.members integer Memberships on this plan that are active or past_due
data.created_at string UTC datetime
data.modified_at string UTC datetime of the last change. Send it back on an update to be warned about a conflicting edit
data.deleted_at string|null null unless the record is in the trash

Errors

Status Code When
404 plugixa_carwash_not_found No membership plan with that id, or it is in the trash.
422 plugixa_carwash_missing_name name is missing or empty.
422 plugixa_carwash_missing_price price is missing or empty.
422 plugixa_carwash_too_long_{field} A text field is too long. The code names the field.
422 plugixa_carwash_too_small_{field} / too_large_{field} A number is outside its range. The code names the field.
422 plugixa_carwash_invalid_{field} A choice field has a value that is not one of its choices. The code names the field.
409 plugixa_carwash_conflict You sent modified_at and somebody saved the membership plan since. data.expected and data.current hold both values.

Plus the errors every endpoint can return.

Examples

curl -s -X PUT "https://your-site.example/wp-json/plugixa-carwash/v1/membership-plans/2" \
  -u "admin:$WP_APP_PASSWORD" \
  -H "Content-Type: application/json" \
  -d '{"price":42,"modified_at":"2026-11-12 09:30:00"}'

<?php
$ch = curl_init('https://your-site.example/wp-json/plugixa-carwash/v1/membership-plans/2');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'PUT',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_USERPWD        => 'admin:' . getenv('WP_APP_PASSWORD'),
    CURLOPT_HTTPHEADER     => [
        'Content-Type: application/json',
    ],
    CURLOPT_POSTFIELDS     => json_encode([
        'price'       => 42,
        'modified_at' => '2026-11-12 09:30:00',
    ]),
]);
$response = json_decode(curl_exec($ch), true);
curl_close($ch);

const auth = Buffer.from(`admin:${process.env.WP_APP_PASSWORD}`).toString('base64');
const response = await fetch('https://your-site.example/wp-json/plugixa-carwash/v1/membership-plans/2', {
  method: 'PUT',
  headers: {
    'Authorization': `Basic ${auth}`,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ price: 42, modified_at: '2026-11-12 09:30:00' }),
});
const { data } = await response.json();

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