Compatibility between parameters

[Former Member]

Hi, I have some strange problem.

I am using a function, which communicate with another system by Web Method.

The function imports parameter type c, length 255) from user through the screen. The field in the screen is type c length 17.

The value that I need to get from user is '-1'.

So, when I getting the '-1' from user through the screen, the system which gets this parameter from function didn't work.

When I send to the function '-1' hard coded it's work.

In debugger it looks the same '-1'.

How can I solve this problem?

[eddy_declercq]

Hi,

Pls check this thread

Eddy

[Former Member]

Thanks, but it didn't help

[Former Member]

hi

u have to display a negative values in parameters then u have to create a data element for that field and set data type as int4.

[former_member186741]

if you call a function module and pass a hard-coded value to a parameter sap will convert it to the correct length.

But if you pass a parameter of the wrong type it will abend. You can move the 17 char field to an intermediate 255 variable and then pass the 255 variable to the fm.

[Former Member]

Hi los,

1. To actually debug,

what can be done is that

create a z table

and put the value which is imported

ie. -1

into that table.

2. After calling this fm from web system,

pass hardcoded -1 and also try with

user input -1

and then check the z table

to know, what ACTUALLY the FM

is receving.

regards,

amit m.

[eddy_declercq]

Hi,

Pls don't forget to reward points and close the question if you find the answers useful.

Eddy

[Former Member]

Hi!

Sorry, I was not at work, for a few days.

The problem was not solved, but the development was changed.

Thanks to everybody, I tried first six answers, and it didn't help.

[Former Member]

Hi,

I agree with Neil's advice to move the screen input to an variable of type c with length 255 first, before calling the function.

WHEN CALLING A FUNCTION, ALWAYS MAKE SURE THAT THE ACTUAL PARAMETERS AND THE FORMAL PARAMETERS AGREE IN TYPE AND LENGTH. You will not necessarily get a runtime error, if they do not agree, but might get faulty data.

You write:

"When I send to the function '-1' hard coded it's work."

Do you mean you are assigning '-1' to a 255-byte character variable?

You write:

"In debugger it looks the same '-1'."

Do you mean that all 255 bytes look the same in hexadecimal notation?

You write:

"The field in the screen is type c length 17."

Are you sure the field in the screen is of type c and not a numerical field?

Kind regards,

Michael