Informix Error -7401: Invalid API usage <api-call>. </api-call>

Reasons / Common Causes

-7401 fires when a DataBlade API call uses an invalid argument or is made in an incorrect context — per the official guidance, this covers several possible causes.

1. An invalid value for one or more arguments, per the official guidance — the first named cause.
2. An incorrect sequence of DataBlade API calls, per the official guidance — the second named cause.
3. The call made from within a callback function where it's invalid, per the official guidance — the third named cause.

Solutions / Resolution

1. Check that the values of individual arguments are valid, per the official guidance, and that the combination of all argument values is correct.
2. Check the sequence of DataBlade API calls, per the official guidance.
3. If the named API call is made from within a callback function, move or remove it, per the official guidance.

Examples

N/A

No specific triggering statement is documented beyond an invalid argument, call sequence, or disallowed callback-function context — see the embedded <api-call> for the specific call.

Diagnostic Checks

1. Check the argument values, call sequence, and calling context (especially whether inside a callback function) for the API call named in the error message.

Related Errors / Related Topics

• -7400 — "Invalid API argument ." A related DataBlade API error, about a specific argument's value rather than call sequencing/context.

A DataBlade API call has an invalid argument, wrong call sequence, or was made from a disallowed callback context — check all three.