Oracle Listener doesn't starts after DB instance installation

During the installation of Netweaver 7.3 on Oracle 19, we faced a scenario where the SWPM stopped while installing the primary application server at the stage where it tends to restart the SAP instance. Further investigation led to the log which suggested that the application host was unable to connect to the database

"R3trans -d" was failing

On checking further it was revealed that the Listener was not running and when an attempt was made to start the listener, it failed

Modularizing CDS Annotations

You use CDS annotations to enrich your data model with metadata. In some cases, this can reduce readability and make it hard to maintain your data definitions. To improve this situation, metadata extensions have been introduced.

Send web push notifications using ABAP through OneSignal

Traditionally (in ABAP-land), in order to notify a user about something in SAP, it meant sending an e-mail to the user mailbox. It works most of the time until the user gets sick and tired of all the emails and sets up a rule to block all incoming e-mails from the SAP system or sets a rule to route it to the spam folder.

Then, came along mobile / Fiori applications where we’re now open to the world of real-time push notifications directly on your mobile device – ding! Obviously, this works great when you’re looking at your phone 24×7 and it’s always within reach.