Delivery Can not Delete Delivery due to ABAP Dump

Question

I have a strange situation on a delviery that is in our production client.  We rec;d an APAB dump whenposting goods issue in  delivery (successfully posted but still ABAP'd out) this was  due to the sales unit field calculated to high of a qty due to a material master setting in the price unit qty,  This has been fixed in the material master but we can not get to the delivery to delete it.  I have succefully reversed goods issue and successfully cancelled TO confirmation.  I can not get to the delivery to delete it.  I can not reject line items on the sales order due to it having subsequent documents.  Does anyone know how this can be accomplished?  Please advise/comment experiences.  It would be GREATLY appreciated.  See Below ABAP dump if it helps....
Kim
Runtime Errors         DYNPRO_FIELD_CONVERSION
Date and Time          05/16/2011 11:05:21
                   Screen name.............. "SAPMV50A"
                   Screen number............ 1102
                   Screen field............. "LIPSD-PIKMG"
                   Error text............... "FX015: Sign lost."
     Other data:
     If you cannot solve the problem yourself and want to send an error
     notification to SAP, include the following information:
     1. The description of the current problem (short dump)
        To save the description, choose "System->List->Save->Local File
     (Unconverted)".
     2. Corresponding system log
        Display the system log by calling transaction SM21.
        Restrict the time interval to 10 minutes before and five minutes
     after the short dump. Then choose "System->List->Save->Local File
     (Unconverted)".
     3. If the problem occurs in a problem of your own or a modified SAP
     program: The source code of the program
        In the editor, choose "Utilities->More
     Utilities->Upload/Download->Download".
     4. Details about the conditions under which the error occurred or which
     actions and input led to the error.

Answer 1

Symptom
A Warehouse Management-relevant (WM-relevant) delivery item is picked, and then the WM transfer order is canceled again using LT0G.
If the storage location for the delivery is changed to a non-WM-relevant storage location and a pick quantity is entered in the delivery, this pick quantity is assigned to the document flow record for the cancellation of the WM transfer order. This is incorrect.
The incorrect document flow record is stored in the database when you save the delivery.
This results in the ABAP runtime error "DYNPRO_FIELD_CONVERSION" when the delivery is processed again with VL02 or VL02N.
Other terms
PIKMG, WM-TA, Warehouse Management (WM) transfer order (TO), VBFA, RFMNG, SAPMV50A, MV50AO0F, FELDAUSWAHL, MV50AO0F, LIPSD-PIKMG
Reason and Prerequisites
This problem is caused by a program error.
Solution
Implement the specified correction to prevent this inconsistency in the table VBFA from occurring again.
Correction report Z_CORRECT_VBFA_FROM_LTAP:
Implement the correction report specified below with transaction SE38 using the attributes:
Title            Correction report for note 435274
Type            1  Executable program
Status                T    Test program
Application              V     Sales
Input parameters for execution of the report:
P_VBELN: Document number of the delivery that has document flows
         for the WM transfer order that are to be corrected.
        While the report is running, make sure that
        no changes are made to the relevant
        document.
P_TEST = 'X': Analysis:   Analysis of the missing document flow records;
                        no changes in the document.
P_TEST = ' ': Correction: Document flow records between delivery and
                        WM transfer order are corrected.
refer SAP Note 435274 - Negative pick quantity in the delivery