Dear Nea Makri, I'm Odoo developer since 2014. During my time as a developer, I have migrated data from different systems to Odoo, such as customer, warehouse, invoices, bank statements and journal entries. Currently, I am leading a team to migrate from HR module in Odoo 11 to Odoo 14 and the MRP module in Odoo 13 to Odoo 14.
Based on the experience, I believe I can help you to accomplished the job.
Before going any further, can you confirm the following:
1. Is there a specific module on the legacy system related to the data you want to migrate?
2. Do we have access to the backup and desire database to test and verify the data?
3. Is there any custom module already installed in the destination database that has related with the migration data?
4. Do we need to maintain the created_date, created_uid, write_date, write_uid and other date in the document?
5. Is there any specific behavior in previous and destination version?
I'm looking forward to hearing you soon. Thank you.
Regards,
Indrajaya