SAP Message VN132 - Program & could not be found

Diagnosis
You have entered a FORM routine which has not been specified.

System Response
In this case, the system only gives a warning message which you shouldobserve. If you enter an incorrect program or FORM routine here, noparameters or text variables will be replaced. In addition, you willnot be able to alter the change indicator or run a program to determinethe output issue date.
Program RSNAST00 (RSNASTOSO) ignores the warning message generated bythe incorrect entry so that processing can continue and the posting canbe made.

Procedure
Please correct your entries. Check whether the problem is due to atyping error.
Maintain valid FORM routines and programs that facilitate the parameterreplacement functions.