If the competition you're registering to works with Acro Companion in-app payments, all the payment process can easily be done inside the application.
Before submitting your registration, ensure that the email of your club's responsible person has been added to your organization's configuration page.
Emails regarding invoice payments will be sent to this email address.
To add this information, with your organization selected, click on the "Configuration" sidebar option.
If you don't see this in the sidebar, it might be because you're not a manager for this organization.
Learn here how to become a manager of an organization.

Your organization's information administration page will appear.

Fill in the "Integrity Responsible" card information and then click "Save changes".

To view the entry fee calculation, navigate to the "Entry Fee" tab after adding your gymnasts/partnerships and members.
Even after the registration is submitted, the information about costs, invoices and payments will be updated on this page.

A quick overview of each registration status can also be found on the registrations table.

Taking the example above, the 3 numbers "770 / 200 / 0" mean:
Once the LOC creates the invoice, an email will be sent to you.
Clicking the button in the email will bring you to the payment screen.
Alternatively, you can choose to manually navigate to the payment screen.
On the sidebar, with your club selected, click "Members".

Click on the "Registrations" tab at the top of the page.

Then, right-click on the registration with the invoice you want to pay and select the "Pay invoice" button.

On the payment screen, first, be sure to select the correct invoice from the dropdown.

Once selected, you'll see the invoice information on the left and the payment information on the right.
To pay the invoice, select your payment method and add the necessary information.
Then, click on the "Pay" button.