Manage downtime categories
Build the list of reasons operators pick from, and decide which ones demand a note.
A downtime category is a reason code an operator puts on a machine stop, for example Tool change. Each carries a severity, an optional color, a flag that forces a note, a planned or unplanned setting, and an optional category type. One list serves every machine in the organization.
Prerequisites. Organization Owner or Organization Administrator, see Roles and permissions. Other roles see the controls disabled.
Open the category list
Categories have no settings page. You edit them from the Classify Downtime modal, from Auto downtime classification under /settings/organization, or from the classify sheet on a phone.
Categories sit under four severity headings: None, Low, Medium, High. IoTFlows ships built-ins every organization sees; turn off Show Default to leave only your own. Only your own carry a pencil, so built-ins cannot be renamed, recolored, or deleted.
Three controls sit above the list and change what you see, not what is stored:
| Control | Options | Effect |
|---|---|---|
| Grouping | Severity, Category Type | Which headings the chips file under, see Group categories with types |
| Planned filter | All, Planned, Unplanned | Hides categories that do not match, see Mark a category as planned |
| Show Default | On or off, on by default | Whether the built-in IoTFlows categories are listed |
Your choices are saved in the browser and reapplied everywhere the picker appears, including the classify sheet on a phone. An operator who filters to Unplanned still sees that filter tomorrow, so say so before you leave a shared touchscreen set that way.
The downtime category list, with the grouping, planned filter and Show Default controls above it.
Create a category
- Click the + on the severity row the category belongs under.
- Type a name in Category name.
- Turn on Require additional note if the reason is not actionable alone.
- Turn on Planned downtime if this reason is work you schedule.
- Pick a Category type, or leave it clear.
- Pick a color, or leave the default red.
- Click Add. A Downtime category added toast confirms it.
An empty name returns Category name is required and creates nothing.
Category fields
| Field | Required | Values | Effect |
|---|---|---|---|
| Category name | Yes | Free text | The label operators see everywhere |
| Severity | Yes | The row you create under | See Set severity |
| Require additional note | No | On or off, off by default | Makes Additional notes mandatory |
| Planned downtime | No | On or off, off by default | Marks stops as scheduled, see Mark a category as planned |
| Category type | No | One type, or none | Tags it for grouping, see Group categories with types |
| Color | No | Default red, or a swatch | Colors it on the Downtimes report |
Creating a category: the severity row you open the form under sets its severity.
Set severity
Severity is how much a stop of this kind costs you, from None to High. It decides the heading the category files under and its color.
The edit form has no severity control, so a category cannot move between headings. To move one, create it again under the correct row, then read Delete a category.
Severity levels
| Severity | Use for | Where it shows |
|---|---|---|
| None | Not a loss: a break | Gray heading |
| Low | Planned work: a changeover | Green heading |
| Medium | Avoidable stops: waiting on material | Amber heading |
| High | Stops needing someone now: a breakdown | Red heading |
Require a note
Turn on Require additional note and the operator must fill Additional notes before the stop will save. The category then carries an amber alert icon in the picker.
Require a note only where the reason alone tells you nothing you can act on. Other and Breakdown earn it. Changeover does not: ten copies of the word "changeover" is all it buys you. Notes drive the only-with-notes filter on the Downtimes report.
The Require additional note control: Operator must add a note when classified.
Mark a category as planned
Planned downtime is a stop you scheduled, for example a changeover or a preventive maintenance window. It is a setting on the category, not on the individual stop, so every stop classified under Preventive maintenance is planned and every stop under Breakdown is not.
Turn on Planned downtime in the add or edit form. Its helper line reads "Downtime using this category is planned". The setting is off by default, and you can change it on an existing category without touching the stops already classified under it.
A planned category carries a calendar icon on its chip, ahead of the name, with the tooltip Planned downtime. Operators see the icon while they classify, which is the cheapest way to tell them that a reason is one you expected.
The Planned downtime toggle and the Category type picker, both on the category form.
Choose planned or unplanned
Turn Planned downtime on when you decided in advance that the machine would stop:
- Scheduled preventive maintenance
- A changeover or setup you wrote into the schedule
- A break or a shift handover the plan accounts for
Leave it off for everything the schedule did not account for, including a tool that broke early and a changeover that was not planned for that shift. If you have to think about whether a reason was scheduled, it was not.
Planned is not the same as low severity. Severity says what a stop costs you, planned says whether you chose it. A four-hour scheduled rebuild is planned and still High. Set the two independently, see Set severity.
Today the flag drives the picker: the calendar icon on the chip, and the All, Planned, Unplanned filter above the list. The category filter on the Downtimes report and the Advanced report still lists categories by severity, so plan to read planned and unplanned apart by selecting the categories themselves.
Group categories with types
A category type is a tag you put on a downtime category so that related categories can be grouped and reviewed together, for example a Failures type over Machine Failure, Robot Failure and Jammed Machine. Types belong to the organization, and one type can carry any number of categories.
A category holds at most one type. Types are separate from severity: severity ranks a single category, a type collects several.
Create a type
Types are managed from inside the category form, so there is no separate page.
- Click the + on a severity row, or the pencil on an existing category.
- Type a name in New type under Category type.
- Click the + beside the field. A Category type added toast confirms it, and the new type is selected for this category.
- Click Add or Save to store the type on the category.
Creating a type adds it to the organization immediately, before you save the category. If you close the form without saving, the type stays and the category keeps the type it had.
Assign, clear, rename and delete
| Action | How | Result |
|---|---|---|
| Assign | Click a type in the list | A check mark marks it |
| Clear | Click the selected type again, or click Clear | The category files under No Category Type |
| Rename | Click the pencil on the type, edit, click the check | Renames it everywhere, on every category that carries it |
| Delete | Click the trash on the type, then confirm | Removes the type from the organization |
Rename rather than delete. A rename keeps every category grouped as it was, which is the whole point of the tag.
Group the picker by type
Switch the grouping control above the list from Severity to Category Type. The chips then file under one heading per type, sorted alphabetically, with No Category Type last. Categories with no type collect there, which makes that heading the list of categories still to tag.
The grouping is a view, not a change to the categories. Switching back to Severity leaves every category exactly as it was.
The picker grouped by category type, with the planned filter beside it.
Decide whether you need types
You probably do not need types. A list of roughly eight categories reads fine under the four severity headings, and a tag on top of that is one more thing to maintain.
Add types when the same review keeps cutting across severities. For example, Machine Failure is High and Jammed Machine is Medium, but a maintenance review wants both, so a Failures type earns its place. Keep the number of types well under the number of categories: a type per category groups nothing.
Change a color
- Click the pencil, then the swatch beside Color.
- Pick a swatch, or Default red to clear the color.
- Click Save. A Downtime category updated toast confirms it.
A category with no color draws in the standard downtime red. Your color carries through to the Pareto and the by-interval and by-asset bars on the Downtimes report.
You do not need a color on every category. Color the two or three reasons you are working on now and leave the rest red.
The color palette: a category's color carries through to the charts on the Downtimes report.
Delete a category
Click the pencil, click Delete, then confirm in the Delete Downtime Category dialog.
Deleting a category rewrites your history. It comes off every downtime ever classified with it, and those stops become unclassified. There is no undo.
Rename rather than delete. Open the pencil, change the name, and save: the stops keep their classification.
Design a category list
Keep the list to roughly eight categories. Operators classify from a touchscreen mid-shift, and a list that scrolls gets the first visible item every time. The Pareto then measures list order, not the plant.
Write categories at the level you can act on. Machine problem names nothing, and wins the Pareto every month without telling you what to fix.
Set Planned downtime on the whole list in one pass, when you build it. It is a single toggle per category, and doing it later means going back through a list an operator has already been classifying against.
See also
Put a reason on a machine stop from the status bar, the machine page's Activity list, Operator View's All Downtime tab, or the iOS work-order screen. Classify one stop or many at once, split a stop that holds two reasons, change an activity's operation, remove a classification, delete a false activity, and open a maintenance work order from the classification modal.
Four organization-wide rules put a reason code on the stops operators should not have to classify by hand: short downtimes, the start of a shift, the end of a shift, and a machine down for an entire shift. Scheduled break windows add a reason for lunch and breaks. Which rule to turn on first, and which to leave off until the shift schedule is trusted.







