Hi, I'm stuck to create previous sales data of backdate...

When I add previous order on system, it's automatically added PO as "today" .

I tried to export excel and edit date,import again. but It doesn't work...

I also purchased module "Sale Confirmation backdate"but,it has error as below.

Error while importing module 'dev_sale_confirm_date'.

Module loading dev_sale_confirm_date failed: file /tmp/tmpj8n_ahx4/dev_sale_confirm_date/security/ir.model.access.csv could not be processed:

No matching record found for external id 'model_dev_sale_confirm' in field 'Model'

Missing required value for the field 'Model' (model_id)

Could anyone give me the easiest solution?

I'm really stuck with this issue and really headache🥲