Is there a send limit amount?
The wallet is limited only by its balance. A single billet (coin) can hold a maximum of roughly 6.8 million units of currency, and if necessary, the wallet will send multiple transactions in order to fulfill the send command. To preserve privacy as much as possible, the wallet also attempts to make all transactions have 2 output billets (one to the destination and one change) and either 2, 3 or 4 input billets. The wallet will randomly add an extra input or two, even when not necessary, in order to hide the sizes of the input billets from the transaction recipient. Before sending the final transaction(s) to the recipient, the wallet will also send one or more transactions back to itself to merge multiple billets into a larger denomination, or split one into smaller denominations, as required to make the final transactions to the recipient have only 2 outputs and 2, 3 or 4 inputs. The wallet does this all automatically, in response to the sendtoaddress command. This is also all completely multi-threaded, so the wallet can handle multiple (hundreds or thousands) of sendtoaddress requests simultaneously.
Thank you for using CredaCash, and please let us know if you have any additional questions or run into any issues.