Methods and systems for dual-to-single message conversion in electronic transactions

A computer-implemented method for electronic transaction message conversion, comprising:

• receiving an authorization request message;
• validating the authorization request message;
• storing data associated with the authorization request message in a transaction database;
• sending a provisional authorization response message in response to the authorization request message;
• receiving a capture message in response to the provisional authorization response message;
• validating the capture message;
• translating the capture message to a composite message;
• and
• sending the composite message to a payment network.

A non-transitory computer readable medium for electronic transaction message conversion, the non-transitory computer readable medium storing instructions that, when executed by one or more processors, cause the one or more processors to perform:

• receiving an authorization request message;
• sending a provisional authorization response message in response to the authorization request message;
• receiving a capture message in response to the provisional authorization response message;
• translating the capture message to a composite message;
• and
• sending the composite message to a payment network.

A system for electronic transaction messaging conversion, the system comprising:

• one or more processors;
• and
• at least one non-transitory computer readable medium storing instructions that, when executed by the one or more processors, cause the one or more processors to perform:
• receiving an authorization request message;
• sending a provisional authorization response message to a point-of-sale (POS) device;
• receiving a capture message generated by the POS device in response to the provisional authorization response message;
• translating the capture message to a composite message;
• and
• sending the composite message to a payment network.