Your reply is really helpful.
But I still have a question:
When coding using BDC OKCODE, some of those function codes require a "=" sign prefix, while others requires the '/' sign.
Let's take a look at PA30, for example:
PERFORM bdc_field USING 'BDC_OKCODE' '=INS'. " for Create
PERFORM bdc_field USING 'BDC_OKCODE' '/E'. " for Cancel
I don't see this info in the Menu Painter (trans. SE41).
How can I know, without recording using SHDB, what is the required prefix for each function code?