How to increase the role of back end operations team for the best productivity of the sales team?

Thanks Krishna Chaitanya Darbhamulla for providing me all these valuable points.
thanks again

By generating leads and providing useful market insights.

Financial bonuses - the spirit of one team - spiritual relationship with the company - the spirit of competition - good salaries and on time and non-postponement, whatever the circumstances

Implement Agil metholodies for back end operations team

Process KPIs and robust rewards, job enrichment and upward mobility.

By devising certain Key Risk Indicators(KRI) & Key Performance Indicators (KPI) you can increase the productivity of sales team.
The indicators can be process related and non-process related indicators.
First of all, historical data to be available if not, the same has to be collated and analysed.
KRI: Process indicators: (from Back office perspective) - Number of rejected applications in a month - this has to be counted on a daily basis with the reasons of rejection and a root cause analysis on the rejection by categorizing the repetitive errors.
Further placing controls by preventive actions - Number of incorrect rejections by the Back office staff, which made the sales team to redo the work - Number of possible frauds that the sales team can do - this does not mean sales team personnel does but it could be either the systems are weak or the procedures followed by them is weak - This can be plugged by undergoinga review on the entire life cycle of events involved right from the beginning the customer was approached by the sales team to till the back office process the customer application - Understanding level of Back office staff about the business and training imparted to the staff Non - process: - Tenurity/Vintage of the Back office staff - Attrition of the Back Office staff - Continuous engagement of the Back Office staff with Sales team and continuous co-ordination - Meeting Sales Manager frequently to gain some insights and to extend co-operation KPI: - Productivity & Quality of Back Office Staff - Strict adherence to TAT - Sharing best practices and root cause of the errors in a timely manner with the back office staff to avoid reoccurence

i will apply KAIZEN ,improve communications,listen carefully,and build a support team, .

will hold productive team meetings to make back office support and sales teams really listen to each other and understand one's needs. after all communication is a two way street.

as a leader you must measure progress and ammend as things progress.

the back office support can only work when it is steered toward the needs of sales teams.

It is important to discuss & own the deliveries ensuring avenues & ways to achieve the tgt , out of the box thinking .

to get know knowledge of market 

customer preference

diverfaction

price skiming