# Enterprise Communication Interface (ECI)

## Utility function: eci_add_par

### Description
Enter string in transfer parameter.
### Syntax
int eci_add_par (eci_param *eci_par, char *data)
### Input parameter
eci_par
Administrative structure for ECI parameter string
data
ECI parameter string to be added
### Return value
ECIOK | Parameter was inserted successfully
ECITOOBIG | Parameter cannot be added