Enabling TLS & SSL protocol in SAP ABAP & JAVA Application Servers.
Follow below SAP notes –
2384243 – NetWeaver Application Server: How to configure strict TLS 1.2
510007 – Setting up SSL on Application Server ABAP
2110020 – Enabling TLS or disabling SSLv3 protocol versions on SAP WebDispatcher, or SAP WebAS (AS ABAP 6xx, 7xx or AS Java >= 710)
There are other blog also which are explaining of this process but the above SAP notes are sufficient to complete the process.