# Order Limit
## Order Amount Limit
The current limit for maximum pending payment orders for SRC20 and Stamps on OpenStamp is set as follows:
| Asset\Limit | MIN(BTC) | MAX(BTC) |
|---|
| SRC20 | 0.0005 | 2 |
| Stamps | 0.0003 | 2 |
We adjust the limit on order amounts based on changes in the network fee rate and token prices. For instance, when the fee rate is high, we will increase the minimum order amount. This is to prevent sellers from having to use a high proportion of the order amount to pay for miner's fees. **However, please note that these adjustments will only apply to new orders and will not affect orders that have already been listed.**
{% hint style="danger" %}
NOTE: Sellers will bear a portion of the transaction fees for asset transfers during the trade, and these fees are closely tied to the Bitcoin network fee rate at the time of the transaction.
The approximate formula to calculate the consumed BTC as miner's fee is: Consumed Miner's Fee(BTC) = 800 \* Current Network Fee Rate / Math.pow(10,8). For example, when the network fee rate is 120 sat/vB, it will approximately consume 0.00096 BTC as a miner's fee.
If you are concerned about the cost of these fees, we recommend not listing orders when the network fee rate is high or listing with large order amount. If you have any open orders that have not yet been executed, it may be wise to cancel them and wait until the network fee rate stabilizes or decreases before listing again.
{% endhint %}
## Maximum Pending Payment Order Limit
The current limit for maximum pending payment orders on OpenStamp is set as follows:
| OS Points | Max Pending Payment Order(SRC20&Stamps) |
|---|
| < 50 | 3 |
| >= 50 | 10 |
To minimize the possibility of malicious users deliberately locking orders without payment, we currently limit the maximum number of unpaid orders a user can have at one time, based on the number of OS points in their account. If we detect any users engaging in this malicious practice of locking orders without payment, we will blacklist their account, and their OS points will also be frozen.
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