Extension ledger is the technology that is used to perform predictive accounting for sales orders in SAP S/4HANA Cloud. Extension ledger is a type of ledger that stores additional postings on top of an underlying ledger, such as the leading ledger. Predictive accounting uses extension ledgers to record provisional postings for sales orders that have not been billed yet. Reference: https://help.sap.com/viewer/65de2977205c403bbc107264b8eccf4b/Cloud/en-US/f7a9d7c86f4740a09ed5d3c3981b8f1d.html

Service Contract is one of the options for Contract Type. A Service Contract is a long-term agreement with a customer that defines the content and scope of services guaranteed within specific tolerance limits for certain parameters (e.g. predefined time frames). Reference: https://help.sap.com/viewer/65de2977205c403bbc107264b8eccf4b/Cloud/en-US/9e9a7e16afef4cc0ad2ab27af385aa72.html

You can perform the following tasks from the Display Technical Users app:

Change the username and password of a print user

Upload a certificate for a communication user The Display Technical Users app allows you to view and maintain technical users in your system, such as print users or communication users. You cannot use this app to assign and unassign users to user groups, lock and unlock the initial user account that is delivered with the new system, or create new technical users. You need to use other apps or tools for those tasks. Reference: https://help.sap.com/viewer/product/SAP_S4HANA_CLOUD/latest/en-US

Some of the benefits that can be harnessed when using the SAP digital payments add-on are:

Predictable setup and operation costs

Future proof payment methods The SAP digital payments add-on does not provide enhanced credit card number storage, unlimited number of Payment Service Providers, or intelligent data analytics as benefits. Reference: https://help.sap.com/viewer/product/SAP_DIGITAL_PAYMENTS_ADDON/latest/en-US