Splitting on customer defined fields in Grants Management

Question

Hi All,
I am implementing a grants management solution where funds are drawn down from the sponsor using resource related billing based on payments.  As part of the reporting to the sponsor we are required to report information from the grants management ledger (payment documents) with information from a third party system which triggered the initial expenditure against the grant.  The join between the information is a reference number passed from the interfaced system.
My solution is to put the reference number in a customer field in the coding block and have updated the GM field movement to populate the field in GMIA.  I would like to put this field in the splittng rules in grants management so that for the reporting to sponsor can be a straight forward join on the interfaced system and the data from payments in GMIA (rather than splitting in the general ledger then joining GMIA, flex GL data and the interfaced system).
The fields which can be used in splitting in GM seem to be a predefined list.  I have traced this in debug and found a function module GM_SPLIT_T8G40_FIELDS which is defining the list of fields availale and translating the the field name.  Any field for which it cannot find a new field name in this function module is being deleted from the list of valid fields.  Therefore, customer fields are deleted from the available fields for splitting.
Can anyone suggest a way around this?
Kind regards,
Geoffrey

Answer 1

OK, it's something along the lines of:
Vendor Invoice posted in GL:
Entry view:
CR Vendor                                         1000 GBP
DR Expense/Customer field A              600 GBP
DR Expense/Customer field B              400 GBP
GL View (splitting on customer field):
CR Vendor/Customer field A                 600 GBP
CR Vendor/Customer field B                 400 GBP
DR Expense/Customer field A               600 GBP
DR Expense/Customer field B               400 GBP
GM document (not possible to split on customer field)
Value type 54 CR Vendor                            1000 GBP
Value type 99 DR Expense/Customer field A  600 GBP
Value type 99 DR Expense/Customer field B  400 GBP
Payment Posted:
GL Entry Veiw
DR Vendor            £1000
CR Bank Clearing  £1000
General Ledger View (split on customer field)
DR Vendor/Customer field A                 600 GBP
DR Vendor/Customer field B                 400 GBP
CR Bank Clearing/Customer field A       600 GBP
CR Bank Clearing/Customer field B       400 GBP
GM Document (not possible to split on customer field)
Value Type 54 DR Vendor            £1000
Value Type 57 CR Bank Clearing  £1000
In GM, there is no link back to the values in the customer fields when the payment is made as the field movement from GL to GM is based on the line items and values in the the entry view and not the split general ledger view.  If  the split GL data were used to populate the GM tables, then the data would already be split by the customer field by the time it reaches GM, negating a need to split on the customer field once in GM.
It still feels, however, that the simplest solution would just be to have the GM ledger split by customer fields.  I have tried raising a customer message with SAP, but this query falls outside of their support remit.
Kind regards,
Geoffrey