Our new customer portal design is live! For any legacy resources, you can still access our older knowledge base here.
The MSL Knowledge Base is exclusively for current MSL customers. Please log in to access all resources. If you've forgotten your login details, reset your password or register.
MSL is taking a festive break! We’ll be closed from 23rd December to 1st January inclusive. See MSL Support for full opening hours.
People and Data
Managing user accounts, troubleshooting login issues, and handling data records and demographic information from your data feed.