It is necessary to understand customers' business needs (which requires industry experience) and answer customers' various questions (mainly how SAP can realize or adapt to customers' existing business processes and future business development). Write all kinds of tenders, sow seeds, and accept all kinds of indiscriminate bombing of tricky customer problems. Tell all kinds of PPT to all kinds of customers.
It's best to be an experienced consultant before selling, otherwise customers will stop asking questions.