Getting a runtime error when using a standard Form Interface

Question

I am getting this Error analysis:
The following syntax error was found in the program /1BCDWB/SAPLSM00000212 :
"Field "VBRK-WAERK" is unknown. It is neither in one of the specified t"
"ables nor defined by a "DATA" statement. ."
The problem is, I am using a standard interface INVOICE_INTERFACE for a custom form. Why am I getting this error? Where in my form should I declare VBRK-WAERK for my program to work?

Answer 1

Here are some troubleshooting steps that will help you isolate and fix this problem:
Create a Z-copy of the INVOICE_INTERFACE (ex. ZIF_SD_INVOICE).  Use this interface in your custom form (ex. ZFRM_SD_INVOICE).
OPTIONAL: In your custom form, deactivate all of the fields you are not using.  This will minimize the amount of work in the next steps.
In your custom interface, go to the Currency/Quantity Fields section.  There are 88 currency fields in the stock interface, but only 12 of them are defined in this section.  At this point you have options:
If you still have fields that are active, but not listed here, you will have to enter them.
If you didn’t deactivate anything, you will have to define the remaining 76 fields here.
Use the interface at the bottom and deactivate the CMPRE_FLT field in your Adobe Form. It can be found in the PAYMENT_CARDS table contained in the HEAD_DETAIL structure of the interface.  The other CURR and QUAN fields are all defined in this interface.  The pictures will guide you to that field in your form.