Hello,

To create a sequence define one xml file like, seq_name.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
<data noupdate="1">
<record id="seq_type_competence_skill" model="ir.sequence.type">
<field name="name">Competence Id</field>
<field name="code">competence.skill</field>
</record>
<record id="seq_competence_skill" model="ir.sequence">
<field name="name">Competence Id</field>
<field name="code">competence.skill</field>
<field name="prefix">ID</field>
<field name="padding">4</field>
<field name="company_id" eval="False" />
</record>
</data>
</openerp>

write _defaults in .py file to generate automaic sequence

'seq_id':lambda self, cr, uid, context:self.pool.get('ir.sequence').get(cr, uid, 'competence.skill', context=context)

Dear Yougesh,

Please refer below link may be help for you.

https://www.odoo.com/forum/help-1/question/how-to-implement-sequences-8830

http://pinakinnayi.blogspot.in/2012/05/auto-number-generate-in-openerp.html

Cheers,

Ankit H Gandhi.