外贸投标中UCC&ACC，AP/EP是什么付款方式？信用证吗?

I want to receive big money by executive by server and by manual downloading and AP/EP formatting,

All my resister codes are bank register and all document are UCC&ACC.

我刚入行是做进口的，今天供应商说 delivery : 10/12 days after received the letter of credit or AP.说是收到信用证或AP后的10到12天发货

AP=A/P是指 acceptance of payment, 承兑交单 这种方式不太保险, 谨慎啊

ACC解释①:ACC= abvance, cash, credit. 实务中，可根据不同的实际情况，选择对应的付款方式的组合。比如其中常有的一组是 预付30%，货到付30%，收到货后XXX天再付40%。 acc中的credit(放账)部分一般都有的。要着重防范这方面的风险。

ACC解释②:客户对ACC的解释: 我问了客人，他回复了 100% acc it means 100% Letter of Credit(bank guarantee is a payment mechanism used in international trade to provide an economic guarantee from a creditworthy bank to an exporter of goods).