Payment Status table

Id	Code	Name	Definition	Result
0	ACCC	Accepted Settlement Completed Creditor Account	Settlement on the creditor's account has been completed.	Accepted
1	ACCP	Accepted Customer Profile	Preceding check of technical validation was successful. Customer profile check was also successful.	Pending
2	ACSC	Accepted Settlement Completed Debitor Account	Settlement completed. Usage : this can be used by a Market Infrastructure reporting to Infrastructure Participant or an Account Servicer to Account Owner to report that the transaction account entry has been completed. Warning : this status is provided for transaction status reasons, not for financial information. It can only be used after bilateral agreement.	Pending
3	ACSP	Accepted Settlement InProcess	All preceding checks such as technical validation and customer profile were successful and therefore the payment instruction has been accepted for execution.	Pending
4	ACTC	Accepted Technical Validation	Authentication and syntactical and semantical validation are successful.	Pending
5	ACWC	Accepted With Change	Instruction is accepted but a change will be made, such as date or remittance not sent.	Pending
6	ACWP	Accepted Without Posting	Payment instruction included in the credit transfer is accepted without being posted to the creditor customer’s account.	Pending
7	PDNG	Received	Payment instruction included in the credit transfer is accepted without being posted to the creditor customer’s account.	Pending
8	RCVD	Received	Payment instruction has been received.	Pending
9	RJCT	Rejected	Payment instruction has been rejected.	Failed
10	UNKN	Unknown	Status received from the bank does not match any known code.	Pending
11	ACFC	Accepted Funds Checked	Preceding check of technical validation and customer profile was successful and an automatic funds check was positive.	Pending
12	CANC	Cancelled	Payment initiation has been successfully cancelled after having received a request for cancellation. Usage: code to be used in the context of APIs only.	Failed
13	PATC	Partially Accepted Technical Correct	Payment initiation needs multiple authentications, where some but not yet all have been performed. Syntactical and semantical validations are successful.	Pending
14	PRES	Presented	Request for Payment has been presented to the Debtor.	Pending
15	BLCK	Blocked	Payment transaction previously reported with status 'ACWP' is blocked, for example, funds will neither be posted to the Creditor's account, nor be returned to the Debtor.	Failed

Result column indicates the perception we have of the normal behaviour of a bank API.

When a payment initiation succeeds, you should receive an ACCC code from the bank. But no, it would be too easy. Some banks will send you back ACCP or ACFC and you will have to call later the Payment Status API to get a definitive status.

ACCC, BLOCK, CANC, RJCT can be considered has definitive statuses for a payment initiation. Other statuses should be considered as pending and polling the payment status API should give you a final status at some point.