Purchase Certificate
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Purchase Certificate is a currency in Arknights.
Item description
A certificate describing the business and operational capacities of Rhodes Island. Can be exchanged for items.
The operations at Rhodes Island require substantial funding and a variety of materials. Therefore, we must trade in diverse markets in order to keep everything running.
Usage[edit]
These certificates are used by Rhodes Island for trading with certain commerce channels to procure more exotic goods not available elsewhere, specifically in the Purchase Certificate Store.
How to obtain[edit]
5 
are awarded for completing daily missions (for a total of 35 per week), while 30 are awarded for completing weekly missions.
Regular drops[edit]
For the sake of convenience, only operations which have been released in the Global server are listed in the table below.
| Operation | Sanity | Drop(s) | Sanity per drop |
|---|---|---|---|
| AP-1 | 10 | ~5
|
2 |
| AP-2 | 15 | ~9
|
1.67 |
| AP-3 | 20 | ~11
|
1.8 |
| AP-4 | 25 | ~15
|
1.6 |
| AP-5 | 30 | ~20
|
1.5 |