To use Crystal Reports 2020, it requires a new license key. License key for Crystal Reports 2020 can be requested from the SAP License Key website by following the steps found in the SAP Knowledge Base Article:
2606876 - How to request a license key for SAP Crystal Reports?
If you are having issue generating the license key, create a case for the License Keys support team under the component: XX-SER-LIKEY-BOJ Note: In the main time, you can still use Crystal Reports 2020 by using the temporary license key following the steps found in the SAP Knowledge Base Article:
CR, Install, upgrade , KBA , BI-RA-CR , How To