Restricting entry values for "document date"

Question

We need to restrict BKPF's "document date" whereever it is entered.
This may not be a programming question per se, but programmers usually know at least as much as users do on the front end of SAP.
Users must not be allowed to enter invalid document dates (e.g. something with a year of 1204), which they currently CAN do.  Is there a way to restrict this field in the table???
Here is a slice of teh data right out of the table so you can see the culprit T-codes.  This must not happen:
Type     Doc. Date     TCode
SD     01/02/1201     
BL     01/02/1201     
SD     01/02/1201     
BL     01/02/1201     
SD     01/02/1201     
BL     01/02/1201     
SB     02/02/0211     FB50
BL     02/02/0211     FB50
BL     12/23/1022     MIGO
WE     12/23/1022     MIGO_GR
BL     05/02/1011     FB60
BL     05/02/1011     FB08
KR     05/02/1011     FB60
KR     05/02/1011     FB08
SB     05/13/0211     FB50
BL     05/13/0211     FB50
Thanks!

Answer 1

Hello,
As Gabriel has mentioned you can apply this check by implementing an FI Validation(Trxn. GGB0). This will take care of the trxn. when the a/c'ing doc is created manually e.g., FB* tcodes.
As you must be aware that an a/c'ing doc is created whenever a debit/credit transaction happens inside the system, e.g, GI/GR, Asset a/c'ing. For e.g., the MIGO trxns you've provided in your list.
In these cases the a/c'ing doc is generated automatically & the validation you've defined wont work! You've to implement the validation(via a BAdI, Customer Exit etc) in the respective transaction which can be cumbersome
Hope you get the basic idea.
BR,
Suhas
PS: Please don't try to modify the date on the a/c'ing doc directly via SQL statements!