ACS Results: Not Assessable Due to Insufficient Documentation

Hello Everyone,
I have recently got my ACS results with the below details.

Your skills have been assessed to be unsuitable for migration under ANZSCO Code 261312 (Developer Programmer).

Developer Programmer - Not Assessable Due to Insufficient Documentation

I have done my masters in Computer science. I have attached all the marks cards for both bachelors and master which is assessed. I am with same company from past 8 years and for experience assessment I submitted my resume, Statutory declaration, payslips(for each episode like start and end month payslip for each year), Form16 , bank statements, PF statements, passport copy and all other required documents. Still the assessment is negative.
Could you please let me know if anybody faced the similar situation and how the skill can be assessed.

Please provide the inputs.

Thanks in advance.