一、Blocking Invoices
An invoice is blocked for one of the following reasons:
1. Automatically due to variances in an item
2. By entering a payment block manually
3. By stochastic blocking
二、 Releasing Blocked Invoices
1. 实际界面中move cash discount date就是Change Baseline Date for payment（是否用当前时间更新baseline date
2. 可以选择Release Manually，或者选Release Automatically然后排JOB Run