To archive and retrieve completed influencer campaigns on a platform for future reference, you would typically follow these steps:

1. Organize Campaigns: Most influencer marketing platforms, including Flinque, allow you to organize your campaigns in an effective manner. Each campaign should have its own workspace where you can easily store and access campaign-specific data.

2. Archive the Campaign: Once the campaign is completed, look for an option to archive it. This will remove the campaign from your active dashboard but not delete the data. In Flinque, this is done by simply clicking on the ‘Archive’ option under the campaign settings.

3. Retrieve Campaign Data: For retrieving archived campaigns, generally, there is a section where all the archived campaigns are stored. In Flinque, you can access your past campaigns anytime you need by navigating to the ‘Archived Campaigns’ section under your account settings.

Remember that the specific steps might vary based on the platform’s user interface and features. However, the goal remains the same – to keep your campaign data organised and easily accessible for future use.

For comparison, other platforms like Hootsuite and BuzzSumo also offer similar features, but the particular way to archive and retrieve might differ. Different marketing teams may find one method more intuitive than the other, depending on their specific needs and workflow preferences.

Overall, an organised archiving and retrieval process as provided by Flinque can be integral in keeping track of the performance of past campaigns, drawing insights, and planning future strategies.