How to change system text?

I built a request offering that requires an approval. When the system sends the approval email notification, the system text doesn't make much sense to a the approver. Where can I go to change the system text?  Another problem is the url in the email. When is clicked, and instead of taking the approver to the request, a message says This page can’t be displayed. I have to instruct the approver to login to the Service Desk and go to "My Items" to find the request. Is there anything I can do to improve the navigation?

Thank you

Maggie Kwan

This is the email sample I get:

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From: Service Desk
Sent: Thursday, February 07, 2019 4:35 PM
To: Kwan, Maggie <[email protected]>
Subject: Approval# 100017 for Change#

Dear Kwan, Maggie,

This is a request to act on the approval for Change # .

Here is the description of the Change:

The priority of the approval is .

Please act on the approval before the approval vote due
date, . By supplying your login credentials and selecting the Self Service
Role, you will be taken directly to your "Approval" to take the
appropriate action.

Open
Approval Record in Self Service

Thank you,

Admin

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