---
title: Priorities
slug: redcircleapi/collections-api/priorities
docTags: 
createdAt: 2024-07-27T14:22:43.825Z
---

# Collection Priorities

Collections are a great way to run a high volume of Requests without coding concurrent requests logic yourself. RedCircle API allows you to [start](https://docs.trajectdata.com/redcircleapi/collections-api/collections/start) many Collections and they will be put into a  `queued`  state and executed sequentially.

![](https://apiimages.imgix.net/redcircleapi/images/png/docs/priorities.png?auto=format\&ixlib=react-9.5.1-beta.1\&w=500 "Collection Priorities")

By setting a  `priority`  to a Collection you can determine the order in RedCircle API executes your queued Collections. Collections with a higher  `priority`  will be executed before those with a lower  `priority` .

By using this method you can ensure your time-critical Collections are always executed before your "background", or non time-critical Collections.

There are 5 priority levels that can be applied to a Collection, they are:

`highest` ,  `high` ,  `normal` ,  `low` ,  `lowest` .

The  `priority`  of a Collection can be set when you [create](https://docs.trajectdata.com/redcircleapi/collections-api/collections/create) or [update](https://docs.trajectdata.com/redcircleapi/collections-api/collections/update) the Collection. If no  `priority`  is specified when the Collection is created it will be assigned the  `normal`  priority.

Collection priority does not affect the speed that your Collections are executed, just the order. Priorities are evaluated at the point at which the platform is going to start the next Collection. For example, if you had a Collection already running with a  `normal`  priority and you started another Collection with a  `high`  priority, the platform would still complete execution of the already-running  `normal`  priority Collection before starting the newly added  `high`  priority Collection.

Collection priority cannot be changed once the Collection is in the  `queued`  or  `running`  state, so be sure to set the desired priority before [starting](https://docs.trajectdata.com/redcircleapi/collections-api/collections/start) the Collection.