The agency you work for may require you to upload required insurance or compliance certification via Fixflo.

If this is requested, you will receive email reminders prompting you to upload the documentation, or if you have already uploaded documentation, it will alert you when it is about to expire:

Additionally, you can log into Fixflo itself, either through the reminder email and not needing login credentials, or you can log in through the Fixflo site of the agency who are requesting your certificate. If you log in through their Fixflo site you can go to the left-hand side of the screen where it says 'Certification':

Once you've clicked through to the 'Certification' section or the links in your email reminders you will be taken to where you can  upload a new certificate:

You can click on 'Add new document'

You can then upload the required document, enter the start and expiry dates as well as having the ability to select when you are sent a reminder for the certificate and if the reminder relates to either the start date or end date. Once you have selected the options you like press save:

The agency you are doing work for will be able to mark the certificate as valid or not, and you'll then be able to see the certificate marked green to show it has been validated:

When you are completing a job, you can also attach any relevant certificates to the issue from your 'Job Completion' window. Once the document has been uploaded, you'll get a prompt asking you to enter the start and expiry dates, as well as the certificate type:
The agency you are doing work for will be able to mark the certificate as valid or not and you'll then be able to see the certificate marked green to show it has been validated: