syncVatCodes

syncVatCodes(db, positions, recipient): void

Syncs VAT codes for RMB positions based on itemVatRate and recipient. Selection rule:

• If exactly one match is found in the VAT code lookup, use it.
• If multiple matches exist, but exactly one default (vatcodeDefault === "1") is present, use that default.
• Otherwise, do not set a VAT code for the position. Uses a per-rate cache to minimize DB lookups and recalculates row amounts afterwards.

Parameters

db

DBConnection

positions

InvoiceItemRmb[]

recipient

string

Returns

void

Description

Does not close the database connection