: Icon indicating "Nothing happened" or "No Data" I have a website showing a matrix of Scheduled Operations the matrix has server names on the y-axis and dates on the x-axis I need an icon

@Deb5748823

I would use a simple circle (stroke only, not filled).
Also perhaps change the ellipsis in "Waiting to Start" (…) to an hourglass or the hands of a watch to indicate time.

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@Martha945

Yellow icons tell users there is an issue, you better check because there may be a problem couldn't caught by application logic.
Red icons tell users there is an error, no matter it is important or not: it is an error that disable application to do something. Typically, in this kind of situations, result could not be created.

Although it is believed that green symbols refer to success, it generally (IMHO ought to be) is not. They inform users about something is ongoing, which may be unnecessary or not usually necessary to be done.

Headlight and apply-brake (in automatic transmisson) symbols in car dashboards are examples for this.

You better inform user about something like, "120 tasks are added.". More than saying it succeed, this may give idea about the significance of that particular update.

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@Speyer780

No data presumably means the scheduled operation has run, so that limits the icons which are relevant.

If it's not OK that nothing happened — that is, it's failed — then the yellow exclamation mark is the icon to use.

- Scheduled Operation Failed

If it is OK that nothing happened, then the green tick is the icon to use.

- Nothing went wrong

If the scheduled operation did not run, but did not miss its schedule (that is, the scheduled time was reached but it was prevented from running because there was nothing to do and no point in running), then you could use a green circle + tick because the job completed normally with nothing wrong, or a green circle with a different symbol (like a white ring) because nothing is wrong and nothing needed doing.

What the base colour is will depend on the purpose of the chart. If it's important to see a sea of green, then that's what should signify "No error".

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@Annie732

To imply nothing happened / no data, I would use "nothing" - IE an empty circle:

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@Marchetta832

Ask yourself: what is the consequence for the user? Does it matter to them? Do they need to refresh/retry/debug/uninstall/pick differently/etc.?

If it is a plain error, need to make an error icon. If action is required you need to make an icon for the action required. Context is more important than technical information.

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After Edit: go with an inactive version of your icons:

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