R3 Unicode error when transferring SRM PO with custom fields to R3

Question

We have an SRM 5.0 system.  We are sending an SRM created PO to R3 (4.7).  This works perfectly if there are no custom fields.  We added 1 custom field of 1 character byte to the SRM PO Header.  When this is done there is a dump in R3 in SAPLBBP_BAPI_PO in "MAPPING_CUSTOMER_FIELDS" saying Data objects in a Unicode program are not convertible.
This happens at the following statements
ASSIGN wa_bapi_cf_header TO <l_tmp_fs>.
l_valuepart = <l_tmp_fs>.
We think this is related to our custom fields on EKKO on the R3 side where there is a currency field (packed), but we are not sure since we just started working with SRM.  Below is our R3 PO header structure for custom fields.
wa_bapi_cf_header has the definition of PO header in our R3 system that contains a packed field.
.INCLUDE     CI_EKKODB          0
ZZCMPCD     ZCMPCD     CHAR     1
ZZTDRIND     ZTDRIND     CHAR     1
ZZACO     ZACO     CHAR     1
ZZBIDROOM     ZBIDROOM     CHAR     1
ZZCAS     ZCAS     CHAR     1
ZZPONEG     ZPONEG     CHAR     1
ZZWARRPO     ZZWARRPO     CHAR     1
ZZQUOTETYPE     ZZQUOTETYPE     CHAR     10
ZZAPRDT     ZZAPRDT     DATS     8
ZZAPRTIM     ZZAPRTIM     TIMS     6
ZZMASSIST     ZZMASSIST     CURR     17                 
ZZPD     ZZPD     CHAR     1
ZZREASON     ZZREASON     CHAR     2
The field being sent from SRM is
ZZACO     ZACO     CHAR     1.
How can I correct this problem?  
Thank you for any help you can give.
Ada Thompson

Answer 1

Hi,
See these related threads;
short dump(UC_OBJECTS_NOT_CONVERTIBLE)
Data objects in a Unicode program are not convertible?what does this mean?
Virtual Char error - UC_OBJECTS_NOT_CONVERTIBLE
/message/1069612#1069612 [original link is broken]
BR,
Disha.
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