Customer Relationship Management: IMPORTANT & OBTAINABLE CUSTOMER DATA

For the sector of retail banking (financial sector) and apparel/clothing ; please specify the 5 most important data of each sector and why it is needed apart from

• Name and surname
• Age (or Date of Birth)
• Gender
• Job
• Education
• Address / place of residence
• GSM number / e-mail address
• Income

You will briefly (not exceeding 5 lines for each data) explain

• what are the 5 most important data,
• why they are important (how can they be used)