RPC_S_STRING_TOO_LONG - 1743 (0x6CF)
The string is too long.
Updated: Feb 21, 2026
Technical Meaning
The RPC_S_STRING_TOO_LONG error code indicates that a string passed to an API function or protocol is longer than the maximum allowed length. This can occur in various contexts where string data is being transmitted or processed.
Error Details
This error typically arises when a client application attempts to send a string over a Remote Procedure Call (RPC) interface, and the string exceeds the predefined maximum length limit. The specific limit may vary depending on the API or protocol implementation.
Usage Context
The RPC_S_STRING_TOO_LONG error is commonly encountered in networked applications that utilize RPC for inter-process communication. It can also appear in scenarios where strings are passed between different components of a distributed system, such as client-server interactions.
Developer Interpretation
When encountering this error, developers should ensure that the string being transmitted or processed does not exceed the maximum allowed length. This may involve adjusting the size of the data being sent, modifying the API function calls to handle longer strings, or implementing custom validation logic to prevent such errors from occurring.
Related Errors
RPC_S_INVALID_STRING_BINDING(1702)RPC_S_INVALID_BOUND(1703)RPC_S_CALL_FAILED(1718)
FAQ
Q: What does the RPC_S_STRING_TOO_LONG error mean?
A: It indicates that a string passed to an API function or protocol is longer than the maximum allowed length.
Q: How can I prevent this error from occurring?
A: Ensure that the strings being transmitted do not exceed the maximum allowed length. Adjust your code to handle longer strings appropriately or implement validation checks.
Summary
The RPC_S_STRING_TOO_LONG error is a generic protocol error indicating that a string exceeds the maximum allowable length in an API function or RPC call. Developers should ensure that their applications adhere to the specified limits and handle such errors gracefully.