# Problem methods

URL: /code/sdk/problem · Id: `page:code/sdk/problem`

> Every Problem Verb as a typed SDK method, with its inputs, result, refusals and an example.

Reference for [Problem](/business/nouns/problem).

| Noun | System | Run by |
| --- | --- | --- |
| [Problem](/business/nouns/problem) | [Discovery](/business/discovery) | [Researcher](/agents/product/researcher) |

### Verbs by group
Problem has 9 Verbs. Its methods take a page per group, each listed in the sidebar under Problem.

| Group | Verbs | What they do |
| --- | --- | --- |
| Records | [`create`](/code/sdk/problem/records#problemcreate) · [`get`](/code/sdk/problem/records#problemget) · [`list`](/code/sdk/problem/records#problemlist) · [`update`](/code/sdk/problem/records-update#problemupdate) · [`delete`](/code/sdk/problem/records-update#problemdelete) | Create, read, change and delete its records. |
| Other Verbs | [`notify`](/code/sdk/problem/verbs#problemnotify) · [`rank`](/code/sdk/problem/verbs#problemrank) · [`suggest`](/code/sdk/problem/verbs#problemsuggest) · [`vote`](/code/sdk/problem/verbs#problemvote) | The rest of its work. |