How to Create Collection Variables
Step 1: Access the Collections Tab
Sub-collection variables can be created and take precedence over their parent collection variables. If a variable in the sub-collection shares the same key as one in the parent collection, the sub-collection variable will be used during request execution.

Step 2: Add Variables
Add variables in the table by specifying the following details:- Key: The name of the variable that you will be referencing when sending requests. Note, an environment cannot have keys with the same name.
- Type: The type of value the variable will store. It can be a string, number, or boolean.
- Initial value (synced): Initial values will be synced across the workspace. These values will be used by default if no user-defined Current value is set for the variable.
- Current value (local): Current values are user-defined entries that are not synced across the workspace. These values will override the defined Initial values. If the current value is empty or left blank, then the initial value of the variable will be used.
