GET Read retention settings (account)
/api/v1/account/retention
Whole rolling 24-hour days, at least one. The effective lifetime is the minimum of system limits, the owning account and monitor overrides. Null inherits. Shortening immediately hides expired data and schedules physical cleanup; a paused cleanup shows its reason. Expired data does not return after lengthening or reset. Incidents, delivery history, reports and security logs have separate lifetimes; external copies are unaffected. Changes require an owning browser account, CSRF and a current revision. Account settings always belong to the authenticated person, including when a shared workspace is selected. Monitor readers may inspect the policy; only its workspace owner may change it. If this feature is unavailable, changes respond with HTTP 503; the read response reports whether you may change the setting.
On this page
Access and permissions
Whole rolling 24-hour days, at least one. The effective lifetime is the minimum of system limits, the owning account and monitor overrides. Null inherits. Shortening immediately hides expired data and schedules physical cleanup; a paused cleanup shows its reason. Expired data does not return after lengthening or reset. Incidents, delivery history, reports and security logs have separate lifetimes; external copies are unaffected. Changes require an owning browser account, CSRF and a current revision. Account settings always belong to the authenticated person, including when a shared workspace is selected. Monitor readers may inspect the policy; only its workspace owner may change it. If this feature is unavailable, changes respond with HTTP 503; the read response reports whether you may change the setting.
Browser session: __Host-mb_session cookie.
Parameters and headers
No path, query or additional request-header parameters.
Request body
No request body.
Responses
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | RetentionPolicy | Yes | — |
| $.account | RetentionDays | Yes | — |
| $.account.raw | integer | null; {"minimum":1,"maximum":7} | No | Original numeric values and states. |
| $.account.minute | integer | null; {"minimum":1,"maximum":30} | No | Minute aggregates. |
| $.account.quarter_hour | integer | null; {"minimum":1,"maximum":365} | No | Fifteen-minute aggregates. |
| $.account.hour | integer | null; {"minimum":1,"maximum":1095} | No | Hourly aggregates. |
| $.account.text | integer | null; {"minimum":1,"maximum":7} | No | Original events and associated run details. |
| $.configured | RetentionDays | Yes | — |
| $.configured.raw | integer | null; {"minimum":1,"maximum":7} | No | Original numeric values and states. |
| $.configured.minute | integer | null; {"minimum":1,"maximum":30} | No | Minute aggregates. |
| $.configured.quarter_hour | integer | null; {"minimum":1,"maximum":365} | No | Fifteen-minute aggregates. |
| $.configured.hour | integer | null; {"minimum":1,"maximum":1095} | No | Hourly aggregates. |
| $.configured.text | integer | null; {"minimum":1,"maximum":7} | No | Original events and associated run details. |
| $.effective | object; {"additionalProperties":false} | Yes | — |
| $.effective.raw | object; {"additionalProperties":false} | Yes | — |
| $.effective.raw.days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.raw.maximum | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.raw.account_days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.raw.source | string; {"enum":["system","account","monitor"]} | Yes | — |
| $.effective.raw.clamped | boolean | Yes | — |
| $.effective.minute | object; {"additionalProperties":false} | Yes | — |
| $.effective.minute.days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.minute.maximum | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.minute.account_days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.minute.source | string; {"enum":["system","account","monitor"]} | Yes | — |
| $.effective.minute.clamped | boolean | Yes | — |
| $.effective.quarter_hour | object; {"additionalProperties":false} | Yes | — |
| $.effective.quarter_hour.days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.quarter_hour.maximum | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.quarter_hour.account_days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.quarter_hour.source | string; {"enum":["system","account","monitor"]} | Yes | — |
| $.effective.quarter_hour.clamped | boolean | Yes | — |
| $.effective.hour | object; {"additionalProperties":false} | Yes | — |
| $.effective.hour.days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.hour.maximum | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.hour.account_days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.hour.source | string; {"enum":["system","account","monitor"]} | Yes | — |
| $.effective.hour.clamped | boolean | Yes | — |
| $.effective.text | object; {"additionalProperties":false} | Yes | — |
| $.effective.text.days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.text.maximum | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.text.account_days | integer; {"minimum":1,"maximum":1095} | Yes | — |
| $.effective.text.source | string; {"enum":["system","account","monitor"]} | Yes | — |
| $.effective.text.clamped | boolean | Yes | — |
| $.expired_before | object; {"additionalProperties":false} | Yes | — |
| $.expired_before.raw | string; {"format":"date-time"} | Yes | — |
| $.expired_before.minute | string; {"format":"date-time"} | Yes | — |
| $.expired_before.quarter_hour | string; {"format":"date-time"} | Yes | — |
| $.expired_before.hour | string; {"format":"date-time"} | Yes | — |
| $.expired_before.text | string; {"format":"date-time"} | Yes | — |
| $.revision | string; {"pattern":"^[0-9]+:[0-9]+$"} | Yes | — |
| $.can_write | boolean | Yes | — |
| $.cleanup | object; {"additionalProperties":false} | Yes | — |
| $.cleanup.status | string; {"enum":["running","paused","complete"]} | Yes | — |
| $.cleanup.reason | string; {"enum":["","storage_unavailable","waiting_for_readers","waiting_for_aggregation","cleanup_failed","waiting_for_database"]} | Yes | — |
| $.cleanup.phase | string | null | No | — |
| $.cleanup.last_attempt_at | string | null; {"format":"date-time"} | No | — |
| $.cleanup.last_progress_at | string | null; {"format":"date-time"} | No | — |
| $.cleanup.completed_at | string | null; {"format":"date-time"} | No | — |
{
"account": {
"raw": null,
"minute": null,
"quarter_hour": null,
"hour": null,
"text": null
},
"configured": {
"raw": null,
"minute": null,
"quarter_hour": null,
"hour": null,
"text": null
},
"effective": {
"raw": {
"days": 7,
"maximum": 7,
"account_days": 7,
"source": "system",
"clamped": false
},
"minute": {
"days": 30,
"maximum": 30,
"account_days": 30,
"source": "system",
"clamped": false
},
"quarter_hour": {
"days": 365,
"maximum": 365,
"account_days": 365,
"source": "system",
"clamped": false
},
"hour": {
"days": 1095,
"maximum": 1095,
"account_days": 1095,
"source": "system",
"clamped": false
},
"text": {
"days": 7,
"maximum": 7,
"account_days": 7,
"source": "system",
"clamped": false
}
},
"expired_before": {
"raw": "2026-10-01T12:00:00Z",
"minute": "2026-10-01T12:00:00Z",
"quarter_hour": "2026-10-01T12:00:00Z",
"hour": "2026-10-01T12:00:00Z",
"text": "2026-10-01T12:00:00Z"
},
"revision": "0:0",
"can_write": true,
"cleanup": {
"status": "complete",
"reason": ""
}
}| Stable error codes |
|---|
| invalid_credential |
| unauthorized |
| authentication_required |
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
{
"code": "demo",
"detail": "Demo error detail; inspect the documented code.",
"instance": "demo",
"message": "Demo error detail; inspect the documented code.",
"message_key": "errors.requestFailed",
"message_params": {},
"request_id": "00000000000000000000000000000000",
"status": 401,
"title": "Demo error",
"type": "about:blank"
}| Stable error codes |
|---|
| csrf |
| insufficient_scope |
| invalid_origin |
| owner_required |
| csrf_failed |
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
{
"code": "demo",
"detail": "Demo error detail; inspect the documented code.",
"instance": "demo",
"message": "Demo error detail; inspect the documented code.",
"message_key": "errors.requestFailed",
"message_params": {},
"request_id": "00000000000000000000000000000000",
"status": 403,
"title": "Demo error",
"type": "about:blank"
}| Stable error codes |
|---|
| not_found |
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
{
"code": "demo",
"detail": "Demo error detail; inspect the documented code.",
"instance": "demo",
"message": "Demo error detail; inspect the documented code.",
"message_key": "errors.requestFailed",
"message_params": {},
"request_id": "00000000000000000000000000000000",
"status": 404,
"title": "Demo error",
"type": "about:blank"
}| Stable error codes |
|---|
| unavailable |
| feature_unavailable |
| Header | Type and limits | Meaning |
|---|---|---|
| Cache-Control | string; {"pattern":"(?:^|,\\s*)no-store(?:,|$)"} | Private API responses prohibit storage. Public OAuth metadata is cached for 300 seconds; live streams additionally prohibit transformation. |
| Content-Language | string; {"enum":["en","de"]} | Language of human-readable response text, resolved from Accept-Language or the documented browser preference. Technical codes and identifiers remain stable. |
| Referrer-Policy | JSON; {"enum":["strict-origin-when-cross-origin","no-referrer"]} | The default referrer policy is strict-origin-when-cross-origin. Provider-login responses use no-referrer to protect login parameters. |
| Retry-After | string; {"pattern":"^[0-9]+$"} | Seconds before retry. Preserve supported idempotency identifiers and respect the operation’s mutation semantics. |
| Vary | string | Responses vary by Accept-Language; browser-rendered responses can also vary by the preference cookie. |
| X-Content-Type-Options | JSON; {"const":"nosniff"} | The browser must use the declared content type. |
| X-Frame-Options | JSON; {"const":"DENY"} | The response must not be embedded in a frame. |
| X-Request-ID | string | Server-generated request identifier. Include this when reporting an error; inbound values are not trusted. |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
{
"code": "demo",
"detail": "Demo error detail; inspect the documented code.",
"instance": "demo",
"message": "Demo error detail; inspect the documented code.",
"message_key": "errors.requestFailed",
"message_params": {},
"request_id": "00000000000000000000000000000000",
"status": 503,
"title": "Demo error",
"type": "about:blank"
}| Stable error codes |
|---|
| revision_conflict |
| preview_required |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
| Stable error codes |
|---|
| invalid_retention |
| deletion_confirmation_required |
application/problem+json
| Field | Type and limits | Required | Meaning |
|---|---|---|---|
| $ | Problem | Yes | — |
| $.code | string | Yes | Stable machine-readable error code |
| $.detail | string | Yes | Short localized explanation without internal error details |
| $.instance | string | Yes | Unique relative identifier /api/v1/requests/{request_id}; not a retrievable resource |
| $.message | string | Yes | Temporarily identical to detail for existing clients |
| $.message_key | string | Yes | Stable translation key for changing the displayed language without another request |
| $.message_params | object; {"additionalProperties":true} | Yes | Named, safely rendered message parameters; never arbitrary HTML |
| $.request_id | string; {"pattern":"^[0-9a-f]{32}$"} | Yes | Server-generated diagnostic identifier. It contains no login token or credential. |
| $.status | integer; {"maximum":599,"minimum":400} | Yes | — |
| $.title | string | Yes | Localized HTTP status title |
| $.type | string; {"const":"about:blank"} | Yes | — |
Retries and asynchronous work
This operation reads or validates without applying a resource mutation. Respect rate limits and credential lifetime.
Request examples
Replace demo IDs, timestamps and placeholders with your own values. For a retry, keep the same IDs, time and content. These examples do not run requests on this page.
Keep login links, codes, cookies and keys private. Do not print them in logs or share them in support requests.
curl --silent --show-error --output /dev/null --write-out "%{http_code}\n" \
--request GET \
--header @"$HOME/.config/metribeacon/headers.txt" \
"https://metribeacon.com/api/v1/account/retention"
import json
from pathlib import Path
from urllib.request import Request, HTTPRedirectHandler, build_opener
from urllib.error import HTTPError
headers = json.loads((Path.home() / ".config/metribeacon/headers.json").read_text())
request = Request("https://metribeacon.com/api/v1/account/retention", data=None, headers=headers, method="GET")
class NoRedirect(HTTPRedirectHandler):
def redirect_request(self, request, fp, code, message, headers, target):
return None
opener = build_opener(NoRedirect())
try:
with opener.open(request, timeout=10) as response:
print(response.status)
except HTTPError as error:
print(error.code)
error.close()
import { readFile } from "node:fs/promises";
import { homedir } from "node:os";
import { join } from "node:path";
const headers = JSON.parse(await readFile(join(homedir(), ".config/metribeacon/headers.json"), "utf8"));
const response = await fetch("https://metribeacon.com/api/v1/account/retention", {
method: "GET", headers, redirect: "manual",
signal: AbortSignal.timeout(10000),
});
console.log(response.status);
await response.body?.cancel();
package main
import (
"fmt"
"net/http"
"time"
"encoding/json"
"os"
"path/filepath"
)
func main() {
home, err := os.UserHomeDir(); if err != nil { panic("request failed; credentials and response omitted") }
raw, err := os.ReadFile(filepath.Join(home, ".config/metribeacon/headers.json")); if err != nil { panic("request failed; credentials and response omitted") }
var headers map[string]string
if json.Unmarshal(raw, &headers) != nil { panic("invalid local headers") }
request, err := http.NewRequest("GET", "https://metribeacon.com/api/v1/account/retention", nil)
if err != nil { panic("request failed; credentials and response omitted") }
for name, value := range headers { request.Header.Set(name, value) }
client := &http.Client{Timeout: 10*time.Second, CheckRedirect: func(*http.Request, []*http.Request) error { return http.ErrUseLastResponse }}
response, err := client.Do(request)
if err != nil { panic("request failed; credentials and response omitted") }
defer response.Body.Close()
fmt.Println(response.StatusCode)
}
Related guides
- HTTP API, OAuth and MCP
Find the user API endpoints, their permissions, fields, examples and response formats.
- PUT Save confirmed retention settings (account)
Whole rolling 24-hour days, at least one. The effective lifetime is the minimum of system limits, the owning account and monitor overrides. Null inherits. Shortening immediately hides expired data and schedules physical cleanup; a paused cleanup shows its reason. Expired data does not return after lengthening or reset. Incidents, delivery history, reports and security logs have separate lifetimes; external copies are unaffected. Changes require an owning browser account, CSRF and a current revision. Account settings always belong to the authenticated person, including when a shared workspace is selected. Monitor readers may inspect the policy; only its workspace owner may change it. If this feature is unavailable, changes respond with HTTP 503; the read response reports whether you may change the setting.
- DELETE Restore inherited retention settings (account)
Whole rolling 24-hour days, at least one. The effective lifetime is the minimum of system limits, the owning account and monitor overrides. Null inherits. Shortening immediately hides expired data and schedules physical cleanup; a paused cleanup shows its reason. Expired data does not return after lengthening or reset. Incidents, delivery history, reports and security logs have separate lifetimes; external copies are unaffected. Changes require an owning browser account, CSRF and a current revision. Account settings always belong to the authenticated person, including when a shared workspace is selected. Monitor readers may inspect the policy; only its workspace owner may change it. If this feature is unavailable, changes respond with HTTP 503; the read response reports whether you may change the setting.
- POST Preview retention changes (account)
Whole rolling 24-hour days, at least one. The effective lifetime is the minimum of system limits, the owning account and monitor overrides. Null inherits. Shortening immediately hides expired data and schedules physical cleanup; a paused cleanup shows its reason. Expired data does not return after lengthening or reset. Incidents, delivery history, reports and security logs have separate lifetimes; external copies are unaffected. Changes require an owning browser account, CSRF and a current revision. Account settings always belong to the authenticated person, including when a shared workspace is selected. Monitor readers may inspect the policy; only its workspace owner may change it. If this feature is unavailable, changes respond with HTTP 503; the read response reports whether you may change the setting.