from . import models def post_init(env): new_receivable_report = env.ref('account_reports.aged_receivable_report').copy() new_payable_report = env.ref('account_reports.aged_payable_report').copy() new_receivable_report.line_ids.mapped('expression_ids').write({ 'formula': '_report_custom_engine_aged_receivable_na' }) new_payable_report.line_ids.mapped('expression_ids').write({'formula': '_report_custom_engine_aged_payable_na'})