Troubleshooting Journey Entry Issues in Salesforce Marketing Cloud

Contacts not entering journey in Salesforce Marketing Cloud
Publishing a custom sms and whatsapp sending app on SFMC app exchange

Steps to publish a custom SMS and WhatsApp sending app on SFMC AppExchange
Enabling Real-Time WhatsApp Opt-In for New Contacts in Journey Builder

Send WhatsApp messages in real-time for new contacts in Marketing Cloud
Automatically removing unsubscribed contacts from a flow in Marketing Cloud

Remove unsubscribed contacts from flows in Marketing Cloud
Optimizing Business Units in Salesforce Marketing Cloud for High-Volume Sends

Using multiple Business Units to handle large email sends in Salesforce Marketing Cloud
Resolving Journey Builder send count discrepancies in SFMC

Journey Builder send counts may not match Tracking numbers due to processing and timing differences.