Term Dolibarr SAP Odoo ...
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Thirdparty Contact partner Partner/Contact (company)
Contact/address Contact person Partner/Contact (individual)
Financial ?? Invoicing
Income / Expense ?? Profit / Loss
Balance ?? Net profit
Subledger account Subledger account ??
Proposal ?? Quotation Proposal is ok but proposition looks better (proposal is for a detailed proposition). We can say also "business proposition or business proposal".
Indian are using "Quotation".