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Hi everyone, I recently migrated from version 11 to version 13 of odoo, my system is based on communication via REST API, so in the external interface I had given the possibility to download invoices, since I migrated to version 13 , I no longer have attachments, so I no longer have the id, how can I recreate them for all invoices?
Is there a method that allows me to recreate it?
Addition:
When from the backend of odoo I go to the invoice but it recreates it then I can download it from the frontend.

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Ok solved (for now),

report = self.env['ir.actions.report']._ get_report_from_name('account.report_invoice_with_payments')


report.sudo().render(inv.id)


Only solution found at the moment, bad for performance. I will update you if there is any news, in the meantime I thank all the people who have answered me.

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Hi

make sure about your Old Server's Filestore must be copied on the Newly server.

Thanks 

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I can't

you can do it via SSH Access of your old server if you have it.

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No and it would also be useless, when I do the POST in the REST, he goes to read the attachment, let's say I change the template, he would return the old one. My question is: is it possible to re-generate the pdf without creating the invoice? Maybe even with a cron

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Did you also copy the filestore?

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No