The problem: MFG code on the J-CON is different from WM's.    The jobber
wishes to change it.  Perhaps it conflicts with a code we have set up for
another line.   For example, some stores use MOT for Motormite. We use MTM,
while MOT is Motorcraft.

CONVERSION TABLE
    If the only issue is the fact that the code is different, and WM's
computer doesn't recognize it, then you can solve that problem with the
Conversion Tables.  You probably already have a conversion table, you just
need to add this MFG code to it, and tell it what WM's corresponding code
it.
Use Option 8.9, edit the Vendor Specific Conversion Table. When it asks if
you want to enter price conversions, answer no.   The "A-price Manufacturer
code" is WM's 3-letter code.
This is the preferred method for dealing with MFG code variances.

CHANGING the CODE

1   8.13 MAKE A BACKUP
     2.8 PRINT REPORT 2.8 for use in step 5

2     3.8 ADD NEW MFG CODES if neccessary
       3.9 ADD SUBLINES (as many as in the MFG to be replaced)

         OR even better, add MFGs through ADM   11.2.4 (if it is a WM line)

3     4.7 EDIT PRICING PLAN on new MFGs to match old

4     3.3 EDIT PARTS  Single MFG, All parts, Single Field
          Edit field #1 (not listed), which is MFG. Use Fixed data
          to change MFG code to new value

5     3.8 EDIT MFG DATA. Change PREVIOUS MFG and NEXT MFG to take   the old
MFG code out of the print links.

6     U3.2 REHASH JIF KEYS.  All screens at 'OPTION'. system is down 15
minutes

7     3.14 SORT & RELINK, FIND PARTS OUT OF PRINT LINKS for new MFG

8     3.3 RESET USLs.  Use Parts Edit on Single MFG, All parts,   Single
field       (#14). Answer (<CR> = U) to      reset USLs

9     3.10 COMPUTE INVENTORY VALUE

10     3.8 DELETE old MFG

Sounds like a lot of trouble, eh?  Actually, it takes about 30 minutes.
I don't recommend you do this on a whim.  This is a disruption of the
database than can introduce errors.  Do not do more than one MFG at a time.
Wait a few days before doing another.