How To Fix SLIC105 - Invalid license key (see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: SLIC - saplicense Messages

• Message number: 105

• Message text: Invalid license key (see long text)

What causes this issue?

You have attempted to install a license key.

System Response

The system has reported that this license key is invalid. The license
key was not installed.

How to fix this error?

Check character-by-character that you entered the key correctly.
If the license key in the file that you received from SAP is very long
(more than 400 characters), it is probably a digitally-signed license
key. Switch to the screen for administering digitally-signed license
keys ("New Licenses" function) and install the key there.

Error message extract from SAP system. Copyright SAP SE.