DLR/SR would be sent over RX connection. You're able to send messages which means TX connection is working as expected. Check with the vendor if there are any issues while sending Delivery Report(DLR/SR) to ACC(ESME) for Mobile originated (MO) Delivery Report(DLR/SR). Check ACC logs if the connectio...

Enable detailed logs using 'Enable verbose SMPP traces in the log file' in the external account configuration.   Also, make sure you have configured SR regex in the SMS account: https://experienceleague.adobe.com/docs/campaign-classic/using/sending-messages/sending-messages-on-mobiles/sms-protocol.h...

Noted! I missed that. I would suggest checking service user permissions.

If you POST data to an external endpoint, extract multipart/form-data using request.getPartsRefer to sample https://experienceleague.adobe.com/docs/experience-manager-learn/forms/handling-af-form-submissions/submitting-adaptive-forms-to-external-server-article-use.html?lang=en HTH. 

Repository Initialization (repoinit):  https://experienceleague.adobe.com/docs/experience-manager-cloud-service/content/implementing/deploying/overview.html?lang=en#repoinithttps://sling.apache.org/documentation/bundles/repository-initialization.html HTH

"flush"

You should explore the Sling scheduler service: https://sling.apache.org/documentation/bundles/scheduler-service-commons-scheduler.html    

The one I tested on my local latest(as of today) AEMaaCS SDK is "React - WKND SPA 1.0.3"[1]. You may fetch it as follows : $ git clone git@github.com:adobe/aem-guides-wknd-spa.git $ cd aem-guides-wknd-spa $ git checkout React/latest $ mvn clean install -PautoInstallSinglePackageIf we follow along wi...

Good explanation is available on the documentation page[1] [1]  https://experienceleague.adobe.com/docs/campaign-classic/using/orchestrating-campaigns/orchestrate-campaigns/setting-up-marketing-campaigns.html?lang=en#recurring-and-periodic-campaigns

Could you please elaborate more on your use case? I would also suggest checking out permission-sensitive caching[1] if that's what you're looking for. [1] https://experienceleague.adobe.com/docs/experience-manager-dispatcher/using/configuring/permissions-cache.html?lang=en